I just don't see any appeal in them. If they are in, okay, I am happy for the fans of the idea, but personally I would heavily prefer something else being included, something entirely fresh.
The thing is, the models are partially there, as evident in the game jam video. The only things that they would need to do is code them for proper lycanthropy, adjust some stats, and implement them into the game. None of which would probably warrant it's own DLC