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Noticed because of a leak on Battle.net today, the expansion to the hit Starcraft 2 will be on store shelves on March 12, 2013. This comes after the expansion was delayed from late 2012 into the first half of 2013.

Apparently, Starcraft 2: Heart of the Swarm will be available for individual purchase for owners of the original full title, Wings of Liberty, or available in a digital deluxe edition that includes both titles for $59.99. The original page does seem to be taken down at the time of writing.

[Kotaku]