So my first thought was that Trump will be able to correct for stuff in debate #2, but I just learned it's actually a town hall debate. That will be completely different. I'm kinda 50/50 on how Trump will do in it. Sometimes he does well in that sort of format, and sometimes he puts his foot in his mouth.
I think it will also depend on how spontaneous the questions from the audience are. I think Trump does much better at spur of the moment and "gotchya" than Hillary does (ref: her not having press conferences).