(Click the image for the full size)

This image supposedly detailing Blizzard's planned release schedule from now until the end of 2014, was leaked to an MMO site by an annonymous source.

A few things from the image that stood out:

-Diablo III releasing at the end of 2011 with two expansions planned

-World of Warcraft launching in Brazil in mid-2011, with a fourth expansion in mid-2012 and a fifth expansion at the end of 2013. Also some mystery project called "WOW TOG"

-an unannounced project called Titan launching at the end of 2013 (presumably this is Blizzard's unannounced MMO)

-StarCraft II's first expansion as well as something called "StarCraft II Phoenix" coming at the end of 2011. The second StarCraft II expansion planned for beginning of 2013

-Battle.net map market launching in mid-2011

-Battle.net "third parties" launching at the start of 2012 -- possibly meaning third-party
releases available for download on Battle.net or using Battle.net for matchmaking? A Steam competitor?

Blizzard has put out a quote concerning this release schedule:

"As always, we appreciate the interest in Blizzard’s current and upcoming games, but we don’t comment on rumors or speculation and we don’t have any new announcements to make. Right now we’re fully focused on the upcoming launch of World of Warcraft: Cataclysm, and we’re very much looking forward to celebrating that event with players around the world starting on December 7."