few interesting things:
Sylvanas will play a very big role in ousting Garrosh
Rexxar is getting some love soon
Blood elves will have a major role in upcoming patches (5.1 onwards)
Alliance players will take over from an incompetent commander and lead an army
The Alliance will band together behind Wrynn, while the Horde will... not when it comes to Garrosh
And a lot of the usual shrugging and 'maybes'