Next expansion?

I really think the next expansion of WoW will be about Sargeras, the Dark Titan. I don't exactly know what it would be called though... probably ::World of Warcraft: DOOM:: And I would be pretty sure the whole world will be pretty much devoured and prehaps another world...unlike Azeroth and Outland this world may be all to himself,practically a dungeon with about 2,000,000 mobs with all new models.