I swear if someone else suggests a Houndoom evolution I will give them a firm talking to. Houndoom is way too awesome to get an evolution!!
INSTEAD, let's hope for Mightyena evo. Anyways, I doubt that GF will think to put anything "evil" there, but I think we can all hope for a nice strong dark type because they wreck everything else. Maybe a dark type based on a raccoon. Something better than zigzagoon.