Starcraft 2 expansion Heart of the Swarm deploys on March 12, 2013, according to a listing on Battle.net. There isn't an official announcement yet, but the digital purchase page for Starcraft 2 indicates Heart of the Swarm will be "available for play" on said date. The second expansion, combined with Starcraft 2: Wings of Liberty, is currently priced $59.99.

During Activision's earnings call last week, Blizzard head Mike Morhaime said his studio was "working hard towards a first half 2013 launch" for Heart of the Swarm. This release date matches up, but it's surprising to see so soon after the reveal of a vague timeframe.