It will be amazing if this subject is even broached at all, let alone discussed in any depth. The stupid half of the country who do not seek out what happened haven't heard any of it, and/or don't give a damn, anyway.
I'm not holding my breath...
I expect Trump to breach it even if Chris Wallace doesn't raise it, or even tries to interrupt.
I think Trump should dismiss any questions at all about the recent unsubstiated accusations of sexual abuse: "I know you people don't follow the news outside of your own echo chamber, Chris, but I emphatically deny those unsubstantiated accusations and have done so in my speeches and online.
"What I want to talk about is Hillary's commitment to globalism, which is another word for a direct assault on the sovereignty and independence of the United States. . . ."
And he should go on from there. He needs to take control in this last debate, and not let Wallace distract with endless questions about these irrelevant allegations.