World of Warcraft: Cataclysm may have slipped to 2011, online retailer Amazon indicated overnight.
Several readers who have pre-ordered it contacted Kotaku claiming to have received e-mails from the online retailer noting that it expects delivery of the game between January 4, 2011 and January 18.
However, things might not be that bad. WoW blogs Wowhead and MMO Champion claim to have discovered text in the game files saying that season nine of Cataclysm's active player versus player combat season will commence on December 14.
Combine this with the fact that a Blizzard staffer said earlier this year that season nine will kick off approximately one week after the official launch of Cataclysm and you have a possible December 7 release date for the expansion.
Currently in beta, an official release date for Cataclysm is expected to be announced during the annual Blizzcon convention later this month.