From what I've read this is a fanmade Starcraft 2 mock image. That weird alien version of a "tank" seems pretty cool but since it is fan made the chances of that being an actual unit are slim to none.

I don't like the look of how he/she's done the Dragoon, it looks too flat and blah. Then again, that's just my opinion. The look of the Dragoon is just different looking than what the first Starcraft ones looked like.

Overall the screenshot is pretty cool. The warping in of the pylon has to be my favorite thing within this screenshot. We can only hope that SC2 will look just as good if not better. And hey, who knows with DX10 just around the corner SC2 might implement it.