The appeals court has volumes of reversible decisions to look at. If anything, I think they would overturn the verdict, throw the case out, and allow the prosecutor to retry the case with an impartial judge and jury, rather than the stacked deck they prepared for Trump. If he goes down...we all go down.
Based on how unfair the judge was, I think he'll continue to do ANYTHING to keep him from campaigning. THIS is how the future campaigns will be run. Lawfare against your opposition.