Single new StarCraft II shot released
It's on ShackNews and shows the new Zerg Baneling unit, apparently. According to the site, "The Baneling (bottom right in image) is an evolved Zergling, which rolls along the ground until it arrives at a target. It specializes in attacking buildings en masse, a kind of land-based version of the flying Scourge."
We believe you. More detail through the link.