I doubt we will see anything new. In other words, Pres. Obama will spend much of his remarks addressing that nothing is his fault and that he killed Osama bin Laden. He may spend a brief blink or 2 blaming Hillary for the Libyan Fiasco.
What I want to hear is if Rmoney actually has some foreign policy positions other than peace through superior firepower (of which I am a limited fan).
The real questions are how much both candidates will abuse the moderator and just how much bias the moderator will show.