Here as you can see the new Zerg units is very similar to a Lurker which was present at Starcraft Broodwar.But the dimensions are too big so it will probably be a new building or modified old Zerg Building.Only by this photo we can not say anything we shall see the mystery of this building in Starcraft 2 in the next months or years .

Here there is lots of Zerg buildings as you can see but we can determine them easily not similar to the first one that we talk about.We can see Spawning Pool,Hatchery,Queen’s Nest,Extractor and Hydralisk Den.