Look for DD to appoint a character who HE really wants. Not that he has followed other peoples orders before, but now the he has been validated I doubt the Ministry or parents are going to argue with him. What would be worse having a werewolf teaching or your kids being unprepared? I seriously think that Fudge and the rest of the Ministry will be keeping a low profile. DD really has stopped trying to appease anyone. I don't think he was ever afraid of anyone, but I think he was originally trying to keep in good standing with the Ministry. Obviously that didn't work, so he was pretty ready to play the reble. So deffinetly look for DD to do whatever he see fit.
Personally I REALLY hope that it isn't someone totally new, because the whole DADA is really a rut. I enjoy the new characters, but introduce them in a different position, or put another teacher in DADA and fill their old position with someone new. I agree with chiapetdiz that either the character really gets along with Harry or they butt heads. The whole "their not what they seem" has been done twice now. If JKR introduces a new character in that position, then he/she won't just be a side note, the character will be an important part of the story. Because of that I hope she uses someone we already sort of know. (the movie execs probably wish JKR would return somebody old, so they don't have to find yet another actor
) I guess I just grew up reading so many book series that repeated a lot of the same story structure over and over, just because it worked the first few times. In other areas JKR really keeps things fresh, so I hope she uses something new.
Anywho, just some rants.