Rumor: Cataclysm Pushed Back to December

Alright, let me start off by saying that this news post is going to be filled with nothing but rumors. Over the weekend, Amazon posted that the release date for Cataclysm is Nov. 23. The page was quickly updated to remove the date. Now Boubouille over at MMO-Champion is saying he received an "update" that the expansion has been pushed back to early December (either Dec. 7 or Dec. 14) from his earlier prediction of Nov. 2.
Just to remind you, those dates are rumors and nothing more. So now it's time to ask you a question, ZAM readers. When do you think Cataclysm will launch? November? December? Will we see it this year? BlizzCon is less than a month away, so we should get some concrete details from Blizzard soon enough.