"Let's just say it's going to be different and it's not going to be a sequel to World of Warcraft," Morhaime told Wired. "It will be different."

He explained that the studio is "not trying to replace World of Warcraft with this new MMO," but is instead trying to "create a different massively multiplayer experience, and hopefully World of Warcraft will still be going strong when that one is released."

Little more is known about the unannounced MMO--during another BlizzCon interview, Morhaime refused to confirm if it is set in a new universe--though the studio has hinted that that the project could end up on consoles in addition to PC.

"We definitely don't have a deadline where 'at this point we're not going to support World of Warcraft,'" Morhaime added. "We wanna support it as long as people want us to support it."