I don't think highly at all of what this thread has become, but out of courtesy to those whom I have been talking with here in the past I will break my silence for a second and post the leak which I think might be true:
"
Level Cap: 115-120 (increased in major patches)
Old World Revamp: Silithus, Un'Goro, Feralas, Tanaris, Stranglethorn Vale (Uldum largely unaffected)
Character Customization: Faces, skin colors, tattoos, horns, markings added
Summary: Titan blood seeps out of wound in Silithus, drastically altering nearby regions and its inhabitants. Azshara seeks to perform ritual that merges Azeroth's dying (weakened) world soul with her own. Something is stirring in the ruins of Ahn'Qiraj (a new threat not seen before). A powerful ally is lost, an old friend becomes a powerful foe.
"
http://www.mmo-champion.com/threads/...The-Dark-Below
The timing suits (just before the event, folks are getting their hands off keyboards and are preparing to hear the public reaction to what they have been working on, the lips are getting laxer, etc).