Speculation as to the game's identity has run wild, with the popular theory being that of the recently announced StarCraft 2. While this may be the case, Blizzard has previously announced plans to release a new World of Warcraft expansion every year, with this year's title having gone unmentioned to this point.

Attendees will also be given a second code, to either unlock a murloc suit for use on their World of Warcraft characters, or unlock a trip to Ebay.

BlizzCon will take place on August 3 and 4 at the Anaheim Convention Center in Anaheim, California. Tickets are $100. More information can be found on the BlizzCon website.