Felwing

[quest=42069] is at 43.6, 24.4 in Azsuna Rhut'van Divide zone. You can get there by taking the path from 40.4, 34.3 Nor'danil Wellspring up the mountain. On top of the mountain you'll see Marius and Tehd, talk to them and Felwing will spawn after a few waves of bats.
He's a part of Adventurer of Azsuna achievement, has a chance to drop [item=129087]

For TomTom users:
/way Azsuna 43.6, 24.4 Marius & Tehd versus Felbats
/way Azsuna 40.4, 34.3 Path to Felbats

Felbats location https://www.youtube.com/watch?v=d_nasuWf1xM

Felwing  >>  [item=129087]  >>  https://www.youtube.com/watch?v=MyACeWxUxDA

TomTom: /way Azsuna 40.4, 34.3 (Path start)

As in "Bill & Ted's Excellent Adventure" movie, two guys - undead warlock and elf demon hunter hunt for dangerous demons stand in their way. There are four events in Azsuna and one in each other zone except Suramar.

Tehd & Marius' Excellent Adventure

1

They Have A Pitlord

[npc=112419]

29.8 40.1

https://www.youtube.com/watch?v=d8oNSXF6Nvc

2

[quest=44070]

[npc=93679]

49.1 47.5

https://www.youtube.com/watch?v=JAzVEPGJ2gA

3

[quest=37908]

[npc=90139]

63.3 74.9

https://www.youtube.com/watch?v=uzh634zikYs

4

Arkethrax

[npc=106583]

67.2 30.6

https://www.youtube.com/watch?v=L5jY8hwYCck

5

[quest=42069]

Felwing

43.6 24.5

https://www.youtube.com/watch?v=MyACeWxUxDA

6

[quest=38212]

Brogozog

59.2 46.3

https://www.youtube.com/watch?v=vUibx7NS9_M

7

[quest=38352]

Doomlord Kazrok

43.3 28.3

https://youtu.be/7V-oIlLCzEA

Have been waiting for 5 minutes, haven't had the option to talk to either of them. Is this currently bugged?