So this stuff looks to be for real.
What I do know is that the expansion will be massive and not just a simple content update and according the post the expansion will be massive and include two new races, a new class, a higher level-cap, new transportation methods, a huge number of new instances and locations and more. Hence, I believe this post to be pretty close to the “real deal”. Or it’s the work of a very imaginative (and creative) poster, what do you think?
I think it all looks pretty legit to me this time around.
UPDATE: Screen shots as well.