STV is arguable, but probable after Cata. We really don’t know the state of the tribes homelands aside from Zul’drak. Someone who has read Exploring EK can probably correct me if I’m wrong there. There would have to be some sort of forced conflict to make STV work, that I will admit.
However, Hinterlands has the Wildhammer Dwarves, who ARE squatting on what is probably the Forest Troll’s best chance at securing a land for themselves yet again. Those Dwarves are in conflict with both the Revantusk and Vilebranch Trolls who make the region home, which is already established.
So, it’s a reconquest of currently contested turf in a sense they are shoving out interlopers and securing the Hinterlands and Jintha’alor while creating a strong showing at the border of Arathi to deter Stromgarde encroachment.
Gameplay-wise, you’d be working your way from Revantusk Village or Jintha’alor to Aerie Peak, dealing with Wildhammer forces and Stromgarde reinforcements. Once at Aerie Peak, there would be a pitched battle, but the Dwarves are unable to repel the combined might of the Witherbark, Revantusk, Zandalari, Darkspear, and Vilebranch tribes and make a successful evacuation towards Grim Batol (Which should lead to a scenario of cleansing that of any remaining corruption and potentially taking all of Twilight Highlands). From there, it turns to a repel of Stromgarde forces who came to Aerie Peak’s aid, pushing them across the border to Arathi before the Humans are able to force a stalemate with the aid of backup from Ironforge and Stormwind. Before the battle ends, Rokhan or Talanji should have a chance to battle Trollbane and get a solid W under their belt by forcing him to retreat personally, the PC can handle a swarm of soldiers or another named character like Rogers while that is occuring.
Then, like Ashenvale, it becomes a zone to play through and experience a story for.