All of them turned into goblin-demons so I bet Tayuya will be the same. I am not one of her fanboys, so I would be alright with that.

Most likely Shika will just keep taking her hits and doging them until he knows the notes, then Shadow Bind her.

I am not sure if he will kill her though, its just not his style. He isn't a killer. Then again I wouldn't have thought Chouji was one either.