I was checking my news feed in Facebook when I saw a recent update on Starcraft's Facebook Fan Page, Blizzard has just uploaded the opening cinematic for Starcraft II: Heart of the Swarm. Check out the video below from Starcraft's official YouTube page.
The Zerg are just everywhere in this video and swarming over the Terran forces. I'm so excited for this game's release. Starcraft II: Heart of the Swarm will be available on March 12, 2013.
Source: Starcraft Facebook Fan Page