Prepare for the approaching Swarm.... On March 12, 2013, StarCraft® II: Heart of the Swarm™ launches around the world, igniting an intergalactic storm of intense strategic combat and opening a savage new chapter in the war between terran, protoss, and zerg. You can pre-purchase the expansion NOW directly through Battle.net® and be ready to play the moment it goes live. [...]
Prepare for the approaching Swarm.... On March 12, 2013, StarCraft® II: Heart of the Swarm™ launches around the world, igniting an intergalactic storm of intense strategic combat and opening a savage new chapter in the war between terran, protoss, and zerg. You can pre-purchase the expansion NOW directly through Battle.net® and be ready to play the moment it goes live. [...]
Originally Posted by (Blue Tracker / Official Forums)
Full blog post can be found on SC2 (US) and SC2 (EU).