So I was reading up on wowwiki and found this :
Cataclysm This section concerns content exclusive to Cataclysm.
According to a recent interview with Tom Chilton, which took place on June 8th, 2010, War of the Ancients will be a Caverns of Time raid instance released some time during the World of Warcraft: Cataclysm patch cycle.
awesuuuum. Did anyone know this?