Trump's trial date is the day before super Tuesday, when 16 states hold their primaries. 8 states will have votes before super Tuesday. Unless one of the other Republican clowns gets their act together, the odds are very good Trump could have the nomination locked up before the trial really gets underway. He likely will be convicted before the July Republican Convention, maybe even sentenced by then.
Republicans will have to either go into the general election with a convicted candidate at the top of the ticket (possibly jailed!) or try use delegate procedures to replace him at the convention.
Trying to replace Trump at the convention will make Trump and his supporters very mad. Supporters who have already shown themselves to be violent. Supporters who will already be pissed off about the witch hunt convictions, who will then have a bunch of "rino delegates" trying to overturn the will of the Republican voters. Trump is not likely to step gracefully aside for the good of the party, especially since at that point winning the presidency will be his only ticket to staying out of jail. He's going to whip his supporters up like we've never seen before. Why not? What does he have to lose?
Oh, July will probably be another recording breaking month of heat because we'll have el nino on top of climate change. Trump supporters are going to be mad at the rigged justice system, mad at their political party, and they will be hot, and all gathered in Milwaukee which has very lax gun laws. You seeing the picture I'm painting? The Dem 1968 convention is going to look like a love fest in comparison. Enjoy your last months of calm.