I sure hope so, ever since that Cinematic as you said I've wondered If he wouldn't Instigate that burning of Teldrassil and become Garrosh 2.0 only to have to Siege Stormwind or even a rebuilt Gilneas, but I'd prefer Stormwind as an end to the war scenario and a scene where Sylvanas... doesn't show mercy to the remaining Alliance and simply tries to murder them all, only for Saurfang to be like "MAK'GORA BITCH" and... well you get the Idea - I want some twists, some spoilers, I want the conflict to be main stage but sadly they said end-expansion It will be culminating In a shared threat or something again, so boo that.
I also hoped raids would basically be Faction X Faction or something, or that both factions go Into said raid area for their own reasons, resources, materials cause that'd make more sense that "Oh wait, stop fighting.. there's a giant world destroying thing In that raid over there, lets go stop It and then resume our conflict" cause that just feels like It will kill the pace and theme of the 5th war they're trying to make here.