StarCraft 2: Heart of the Swarm new multiplayer units detailed - Updated, video added

When the first expansion to StarCraft 2 launches, it will be bringing more than just a single-player campaign. It will also boast a number of new multiplayer changes as well. Today Blizzard gave fans a sneak peak at the new units they're planning to intergrate into SC2's famously well-balanced online play. This doesn't necessarily mean the game is coming soon though. In fact, we don't even yet know