I'm starting to wonder if Trump is intentionally trying to ruin his future presidential prospects. He didn't seem thrilled to win the presidency the first time around, it makes me wonder if he's trying to make sure he can't get elected the second time around; but he's doing it in a way that'll make him a political martyr so he can profit off it.
The idea being that he might have decided that, as profitable as being president was, there were too many legal restrictions and too much scrutiny to be worth it. Both cases have gotten him into a lot of trouble, the legal aspects potentially barring him from running again, whereas the scrutiny caused his illegal real estate practices to get uncovered. It seems possible he doesn't want to go through that again.
However, he can't just drop out, he's too popular for that and his voter base would possibly turn on him if he did; but what he can do is try to intentionally ruin his ability to run for president again via incredibly incompetent legal defense. Then he can claim it was the deep state and throw a big pity-party followed by book deals, podcast interviews, etc.
If I'm correct, then I predict that what will happen is if Trump is found guilty and barred from holding the presidency, his lawyers will likely try to petition for home arrest. Then, he will go out on social media and declare that he has decided to stop campaigning, either voluntarily or because the "deep state" forced him to stop. There won't be any serious legal appeals, it'll be a bit anti-climactic. He'll pretend to melt-down on social media but within a week or maybe a month he'll be more focused on interviews and book deals than on calling out politicians. Basically what I'm trying to say is that if I'm right, and he loses the cases against him I'm expecting him to put up a token of resistance and then go find other ways of fleecing his followers, because he's decided he can make more money as a disgraced former president than someone in office.