StarCraft II: Heart of the Swarm preview video Blizzard have released a the first StarCraft II: Heart of the Swarm preview video. The community Manager Cloaken takes a look at features designed to strengthen and support the community, relationships, and communications among players. You can learn more about Heart of the Swarm on our preview page here: http://bit.ly/W3YgqK. You can also pre-purchase the expansion, and be ready to play when it arrives on March 12 2013. You are Sarah Kerrigan, former Queen of Blades. Once the most feared entity in the galaxy, you now wait in a cell in the depths of a high-security research laboratory. Before the murderous forces of the Terran Dominion close in, you must plot your escape to the dark reaches of spaceā¦ and reclaim your living empire at the Heart of the Swarm. Take a look at the preview here: http://youtu.be/T5JHlRWQiMs