The problem is, when you're running behind (as Trump is) you need debates in order to try to close the gap (in the hopes that your opponent happens to make some huge mistake or loses badly). Of course, the problem for Trump is that he is such an inept and unlikable person, the chance of him actually looking good in a debate is slim to none.Well, usually an "october surprise" is not something that is orchestrated ahead of time, so if it does happen it may be something totally out of left field.
If its something Trump is involved in? My guess is some big action on the part of the DOJ (maybe legal action against Clinton or other Democrats on false charges).
I think that's a good guess!
But would it be effective enough to turn the tide?