Even if there is an appeal, who in his right mind believes that Trump can get any fair and reasonable treatment in a NY court? I certainly don't.
Trump may as well be headed for a dungeon by decree of the king or a dictator. It is the same thing.
The plan has been very sinister. First, convict as man of Trump's associates as possible to discredit him and paint him guilty by association and isolate him. Second, pillory him with legal actions and finally convict him in a mock trial for contrived charges that remain unclear.
Trump will be in jail for the national convention. They will wait until they can get maximum shock value out of it.