Leaked screenshot from the expansion on the loose

Yesteday I saw a screenshot from that definetly was World of Warcraft alright. I could clearly see on the water, on the sky and on the overall "look" of it that it was WoW and not another game.

It showed something (in an area) that definetly isn't in the game we're playing right now. It didn't show too much, but interesting nevertheless because you can clearly figure out if you where the picture takes place. I don't think this picture could be fake since what's shown is too complicated to really be made by fans. It's definetly not photoshop work either.

I've been trying to track down where it came from to validate it further. So far no results.

I'm not going to link to it because Blizzard definetly does not approve of such practices, sorry. Only nine days left anyways.

Edit: I've seen more now, two more to be exact. These definetly are leaks.