I do not think it will end in a draw. I think Man City will solve the job tonight already by winning easily.
I wouldn't be sure about that. Dortmund is showing two faces this season. In some games they play outstandingly, so that you could think they are contenders for the CL win, and in other games they show a performance that is piss-poor (sorry for the word) and not really suitable for the first league. It depends a lot on what face they will show against ManCity.