When you've got a Horde vs Alliance story where it's absolutely impossible for either side to truly win due to gameplay reasons, you know that our actions are going to be completely inconsequential throughout the expansion. Which is the very definition of a filler expansion.
I think it was a mistake to make the Horde vs. Alliance fallout the central theme of the expansion when they will never be able to deliver on the gameplay associated with that. And it is gameplay first. This is shaping up to be WoD 2.0.