The Panda ship has unfortunately sailed. We just aren't going to be able to put that fat assed genie back into it's bottle. That being said, I'd love to see a large, scaled/reptilian race on the Alliance side, something with some badass appeal (like the worgen) to continue to beef up the alliance. Races like Drakonid, Naga, Saurok, etc... come to mind. As for the horde, I just plain think they missed a golden opportunity with WoD to introduce redesigned ogres into the horde, if there is one race for either faction that's an absolute slam dunk in making sense, it's horde ogres.