Fate of the Nightborne

For all the people as lost as me, here is what you should do:
1) You have already done the Suramar quest line, because you wanted flying - check!
2) You have killed Gul'dan blah blah - check!
3) You question yourself: Where is my freaking mana cat thingy mount - check!

Okay, brace yourself because it will take between 30 mins and 1 hour - ughh ... :(

1. Go talk to Khadgar Pain in the A*s guy in Dalaran. If you are lazy like me and have abandoned the New Karazan Qestline you will have the " ! " sayin its that quest when you open it on the minimap, but still go talk to him. He will now give quest about the Eye of something and killing Gul'dan and stuff.
2. LFR Time - please god kill me .... Go on the last Nighthold LFR wing ... keep in mind this might not be the last available LFR wing at that moment, so use your eyes and read ...

If you have healing spec qeue as healer cause it will be faster, but dont go as tank cause that means you will actually have to do stuff.

3. Chill and wait for the others to kill Gul'dan. DO NOT LEAVE but instead go and talk to Khadgar white haired pain ... and he will port you back to dalaran with the Eye artefact object thingy. Good job, you did well !

4. Go to your base of operations in Suramar where you get the quest and the Whitered training mount farming thing. Go to the portals ( On your left) and talk to Oculeth ( dat name ...), he will give you quest and teleport you to the Nighthold. Chill and listen cause there is some lore there (if thats your thing).

5. After they decide to .... spoiler spoiler I am not telling ... justs return the quest to female doing most of the decision making at that moment.

6. Bravo bravo bravo - you just got yourself your 278th mount ... or something. We both know you will never use it ... but still you got to have it :)

Now only 20 to go to 300...

Someone left a comment sort of describing the same issue I encountered, but just for clarity's sake I wanted to create one.

If you get this quest and talk to Oculeth to teleport to the Nighthold but DO NOT see Thalyssra or other NPCs, hearth out and change your Raid Difficulty (I killed Gul'dan on Normal but my own personal raid difficulty was set to Heroic, so I hearthed and swapped it to Normal).

After that, I went back to Oculeth, teleported me to the Nightspire in the Nighthold and I then saw the appropriate NPCs including Thalyssra to turn the quest into. This likely is a bug occurring at the time this comment was made, so disregard it in the future if it's been "fixed"!

Had a couple issues with trying to turn this in today.
- If you port into the Nighthold as part of the quest, it tries to port you out after 60 seconds for not being in that instance's raid group. I just joined a group through the group finder for, say, mana fishing and it made the countdown stop.
- Also, Thalyssra wouldn't actually let me turn in the last part of it while inside the Nighthold. I just took the portal behind her, then talked to Occuleth and ported back, re-watched them talk, then it finally worked.