Blizzard already revealed that World of Warcraft: Cataclysm may be released in 2010 if they think the game is ready to be launched, but now other details hint at an early December release.

Both Wowhead and MMO Champion discovered some interesting text in the game files for the next Cataclysm beta patch, where it could be read that season 9 of the Arena player-versus-player competition begins on December 14th. A forum post from Blizzard stated that season 9 begins “approximately one week after the official launch of World of Warcraft: Cataclysm”.

This means that World of Warcraft: Cataclysm would release on December 7th. We’ll wait for an official word on this.