WoW Forever Rogue Talents
The Rogue trees (Assassination, Combat, Subtlety) as the WoW Forever beta client ships them: 3 talents renamed and 39 with changed text against Classic Era, 8 identical.
The tree layout on this page is the beta client's current Talent table (build 1.60.1.69913), and it matches Classic Era 1.15.9.69722 slot for slot. Blizzard has not shipped the final Forever trees in readable client data, so treat positions, rank caps and arrows as vanilla's until a build changes them.
Rogue talent calculator
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Planner rules are Classic's: 51 points at level 60, five points per tier. Blizzard has not confirmed either for Forever. Share links are ours, not in-game import strings.
Every Rogue talent: Forever beta against vanilla
Assassination

Improved Eviscerate Text changed
Forever beta Increases the damage done by your Eviscerate ability by 20%.
Vanilla rank 1 Increases the damage done by your Eviscerate ability by 5%.

Remorseless Attacks Text changed
Forever beta After killing a non-trivial enemy, gives you a X% increased critical strike chance on your next Sinister Strike, Backstab, Ambush, Mutilate, or Ghostly Strike. Lasts 20 sec.
Vanilla rank 1 After killing an opponent that yields experience or honor, gives you a 20% increased critical strike chance on your next Sinister Strike, Backstab, Ambush, or Ghostly Strike. Lasts 20 sec.

Malice Text changed
Forever beta Increases your critical strike chance with all attacks and Poisons by 5%.
Vanilla rank 1 Increases your critical strike chance by 1%.

Ruthlessness Text changed
Forever beta Gives your finishing moves a 60% chance to add a Combo Point to your target.
Vanilla rank 1 Gives your finishing moves a 20% chance to add a combo point to your target.

Murder Text changed
Forever beta Increases all damage dealt by 4% against Humanoid and Giant targets.
Vanilla rank 1 Increases all damage caused against Humanoid, Giant, Beast and Dragonkin targets by 1%.

Improved Slice and Dice Same as vanilla
Increases the duration of your Slice and Dice ability by 15%.

Relentless Strikes Text changed
Forever beta Your finishing moves have a X% chance per Combo Point to restore 25 Energy.
Vanilla rank 1 Your finishing moves have a $b1% chance per combo point to restore 25 energy.

Improved Expose Armor Text changed
Forever beta Reduces the Energy cost of your Expose Armor ability by 10, and refunds 2 Combo Points when cast with 5 Combo Points.
Vanilla rank 1 Increases the armor reduced by your Expose Armor ability by 25%.

Lethality Text changed
Forever beta Increases the critical strike damage bonus of your Sinister Strike, Gouge, Backstab, Mutilate, Ghostly Strike, and Hemorrhage abilities by 6%.
Vanilla rank 1 Increases the critical strike damage bonus of your Sinister Strike, Gouge, Backstab, Ghostly Strike, and Hemorrhage abilities by 6%.

Vile Poisons Text changed
Forever beta Increases the damage dealt by your poisons by 20% and gives your poisons an additional 40% chance to resist dispel effects.
Vanilla rank 1 Increases the damage dealt by your poisons by 4% and gives your poisons an additional 8% chance to resist dispel effects.

Improved Poisons Text changed
Forever beta Increases the chance to apply Poisons to your target by 10%, and gives Poison applications a 50% chance to not consume a charge.
Vanilla rank 1 Increases the chance to apply poisons to your target by 2%.

Cold Blood Text changed
Forever beta When activated, increases the critical strike chance of your next Sinister Strike, Backstab, Ambush, Eviscerate, or Mutilate by 100%.
Vanilla rank 1 When activated, increases the critical strike chance of your next Sinister Strike, Backstab, Ambush, or Eviscerate by 100%.

Improved Kidney Shot Text changed
Forever beta Enemies Stunned by your Kidney Shot ability take 10% increased damage from your poisons and attacks.
Vanilla rank 1 While affected by your Kidney Shot ability, the target receives an additional 3% damage from all sources.

Seal Fate Text changed
Forever beta Your critical strikes from abilities that add Combo Points have a X% chance to add an additional Combo Point.
Vanilla rank 1 Your critical strikes from abilities that add combo points have a 20% chance to add an additional combo point.

Vigor Same as vanilla
Increases your maximum Energy by 10.
Combat

Improved Gouge Text changed
Forever beta Increases the duration of your Gouge ability by 1.5 sec.
Vanilla rank 1 Increases the effect duration of your Gouge ability by 0.5 sec.

Improved Sinister Strike Text changed
Forever beta Reduces the Energy cost of your Sinister Strike ability by 5.
Vanilla rank 1 Reduces the Energy cost of your Sinister Strike ability by 3.

Lightning Reflexes Text changed
Forever beta Increases your Dodge chance by 5%.
Vanilla rank 1 Increases your Dodge chance by 1%.
Improved Backstab Not readable
The beta client ships no readable spell for this slot.

Deflection Same as vanilla
Increases your Parry chance by 1%.

Precision Text changed
Forever beta Improves your chance to hit by 1%.
Vanilla rank 1 Increases your chance to hit with melee weapons by 1%.

Endurance Text changed
Forever beta Reduces the cooldown of your Sprint and Evasion abilities by 60%.
Vanilla rank 1 Reduces the cooldown of your Sprint and Evasion abilities by 45 sec.

Riposte Same as vanilla
A strike that becomes active after parrying an opponent's attack. This attack deals 150% weapon damage and disarms the target.

Improved Sprint Text changed
Forever beta Gives a 100% chance to remove all movement impairing effects when you activate your Sprint ability.
Vanilla rank 1 Gives a 50% chance to remove all movement impairing effects when you activate your Sprint ability.

Improved Kick Text changed
Forever beta Gives your Kick ability a 100% chance to Silence the target for 2 sec.
Vanilla rank 1 Gives your Kick ability a 50% chance to silence the target for 2 sec.

Hack and Slash was Dagger Specialization Renamed
Forever beta Increases your chance to get a critical strike with Daggers and Fist Weapons by 5%.
Vanilla rank 1 Increases your chance to get a critical strike with Daggers by 1%.

Dual Wield Specialization Text changed
Forever beta Increases the damage done by your off-hand weapon by 50%.
Vanilla rank 1 Increases the damage done by your offhand weapon by 10%.

Hack and Slash was Mace Specialization Renamed
Forever beta Your attacks with Maces ignore up to 15% of your target's armor.
Vanilla rank 1 Increases your skill with Maces by 1, and gives you a 1% chance to stun your target for 3 sec with a mace.

Blade Flurry Text changed
Forever beta Increases your melee attack speed by 20% and your melee attacks strike an additional nearby opponent. Lasts 15 sec.
Vanilla rank 1 Increases your attack speed by 20%. In addition, attacks strike an additional nearby opponent. Lasts 15 sec.

Hack and Slash was Sword Specialization Renamed
Forever beta Gives your melee weapon attacks a benefit depending on the weapon. Axe/Sword: Your successful melee attacks have a 5% chance to trigger an extra attack on the target. Dagger/Fist: Increases your critical strike chance by 5%. Mace: Your attacks ignore 15% of your target's armor.
Vanilla rank 1 Gives you a 1% chance to get an extra attack on the same target after dealing damage with your Sword.

Fist Weapon Specialization Same as vanilla
Increases your chance to get a critical strike with Fist Weapons by 1%.

Weapon Expertise Text changed
Forever beta Reduces the chance for your attacks to be Dodged or Parried by 2%.
Vanilla rank 1 Increases your skill with Sword, Fist and Dagger weapons by 3.

Aggression Text changed
Forever beta Increases the damage of your Sinister Strike, Backstab, and Eviscerate abilities by 2%.
Vanilla rank 1 Increases the damage of your Sinister Strike and Eviscerate abilities by 2%.

Adrenaline Rush Same as vanilla
Increases your Energy regeneration rate by 100% for 15 sec.
Subtlety

Master of Deception Text changed
Forever beta Reduces the chance enemies have to detect you while in Stealth mode as if you were 3 levels higher.
Vanilla rank 1 Reduces the chance enemies have to detect you while in Stealth mode.

Opportunity Text changed
Forever beta Increases the damage dealt by your Backstab, Garrote, Ambush, and Mutilate abilities by 10%.
Vanilla rank 1 Increases the damage dealt when striking from behind with your Backstab, Garrote, or Ambush abilities by 4%.

Sleight of Hand Text changed
Forever beta Reduces the chance you are critically hit by attacks by 2% and increases the threat reduction of your Feint ability by 20%.
Vanilla rank 1 Reduces the chance you are critically hit by melee and ranged attacks by 1% and increases the threat reduction of your Feint ability by 10%.

Elusiveness Text changed
Forever beta Reduces the cooldown of your Vanish and Blind abilities by 90 sec.
Vanilla rank 1 Reduces the cooldown of your Vanish and Blind abilities by 45 sec.

Camouflage Text changed
Forever beta Reduces your speed penalty from your Stealth ability by 15% and reduces its cooldown by 6 sec.
Vanilla rank 1 Increases your speed while stealthed by 3% and reduces the cooldown of your Stealth ability by 1 sec.

Initiative Text changed
Forever beta Gives you a 100% chance to add an additional combo point to your target when using your Ambush, Garrote, or Cheap Shot ability.
Vanilla rank 1 Gives you a 25% chance to add an additional combo point to your target when using your Ambush, Garrote, or Cheap Shot ability.

Ghostly Strike Text changed
Forever beta A strike that deals 125% (180% if a Dagger is equipped in your Main Hand) weapon damage and increases your chance to dodge by 15% for 7 sec. Awards 1 combo points.
Vanilla rank 1 A strike that deals 125% weapon damage and increases your chance to dodge by 15% for 7 sec. Awards 1 combo points.

Improved Ambush Text changed
Forever beta Increases the critical strike chance of your Ambush ability by 45%.
Vanilla rank 1 Increases the critical strike chance of your Ambush ability by 15%.

Setup Text changed
Forever beta Gives you a X% chance to add a Combo Point to your target after Dodging an attack or fully resisting a spell.
Vanilla rank 1 Gives you a 15% chance to add a combo point to your target after dodging their attack or fully resisting one of their spells.

Improved Sap Same as vanilla
Gives you a 30% chance to return to stealth mode after using your Sap ability.

Serrated Blades Text changed
Forever beta Causes your attacks to ignore 9% of your target's Armor and increases the damage dealt by your Rupture ability by 30%.
Vanilla rank 1 Causes your attacks to ignore X of your target's Armor and increases the damage dealt by your Rupture ability by 10%. The amount of Armor reduced increases with your level.

Heightened Senses Text changed
Forever beta Increases your Stealth detection as if you were 3 levels higher and reduces your chance to be hit by spells and ranged attacks by 6%.
Vanilla rank 1 Increases your Stealth detection and reduces the chance you are hit by spells and ranged attacks by 2%.

Preparation Same as vanilla
When activated, this ability immediately finishes the cooldown on your other Rogue abilities.

Dirty Deeds Text changed
Forever beta Reduces the Energy cost of your Cheap Shot and Garrote abilities by 20, and your Garrote ability no longer requires you to be behind your target.
Vanilla rank 1 Reduces the Energy cost of your Cheap Shot and Garrote abilities by 10.

Hemorrhage Text changed
Forever beta An instant strike that deals 100% weapon damage (145% if a Dagger is equipped) and causes the target to take 15% increased Rupture damage from the Rogue. Lasts 15 sec. Awards 1 Combo Points.
Vanilla rank 1 An instant strike that damages the opponent and causes the target to hemorrhage, increasing any Physical damage dealt to the target by up to 3. Lasts charges or 15 sec. Awards 1 combo points.

Deadliness Text changed
Forever beta Increases your Attack Power by 10%.
Vanilla rank 1 Increases your Attack Power by 2%.

Premeditation Text changed
Forever beta Adds 2 Combo Points to your target. You must add to or use those combo points within 20 sec or the combo points are lost.
Vanilla rank 1 When used, adds 2 combo points to your target. You must add to or use those combo points within 10 sec or the combo points are lost.
Beta values are the single readable record per talent. They do not always correspond to vanilla rank 1, so compare the wording, not the rank.