So Blizzard have started teasing new units over on their Facebook page. First up is a silhouette of the Terran unit, with silhouettes for the Zerg & Protoss units coming soon. Presumably these units will be revealed at Blizzcon?
Here's the unit:
So what do we think it will be? Personally I'm thinking some sort of hellion transformation based on the wheels on the legs and what appears to be a flamethrower on top.
Edit: Totally forgot to add the Zerg Unit:
Edit2: Here's the Protoss unit: