Blizzard have released the debut trailer for StarCraft II: Heart of the Swarm. It's the first we've seen of the game since the first part of the trilogy hit stores in the Summer of last year. Surprisingly, there is no zerg to be seen in this trailer.
If you haven't already finished Wings of Liberty, be warned, spoilers lay ahead. It'll be interesting to see if Blizzard reveals more at E3 or if they're just teasing for their own BlizzCon event later this year in October.