Trump will be ready and have a effective counter punch ready.
Not as effective as the FBI news.(What could be)
He still has a trick or two up his sleeve.
The FBI stuff is seriously the most October Suprise-y thing that could have ever happened. And being the one issue that people on both sides feel that Clinton should have been nailed for is going to make this peak at a time they cannot afford it. The narrative for the next 7+ days is set, and the Clinton’s know it.
The complete ripple effects of this wont totally be seen in polls for a week. And with the entire machine tossed into chaos, they cant mount an effective counter because our side has already moved events quickly along.