From MMO-champion:
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Shacknews reported that according to Mike Morhaime (Blizzard Entertainment's CEO), Wrath of the Lich King will be released between October and December 2008.
"We have said that it will be coming out this year," Blizzard CEO Mike Morhaime revealed in a conference call today. "I can tell you it's not coming in the July to September quarter."
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I really did not think it would be out so soon.

Micah
Fri, 08/01/2008 - 7:10amI had a pretty good feeling it was going to happen this holiday season. Age of Conan has already released, Warhammer is due out on 9/23, and with EA backing it, it's getting and will get a lot of hype. Blizzard really needed to push it out by this holiday season to protect its market share.
Qyn
Fri, 08/01/2008 - 7:19amI'll believe that when I see it. >.>
Brian
Fri, 08/01/2008 - 7:51amOh Blizzard. I agree with Qyn
Mike
Fri, 08/01/2008 - 10:12amThis means that Blizzard will release it in 2009, they said this about BC too and then released it in January.