If he keeps threatening witnesses, the prosecutor, judges, etc and refuses to stop he just might end up in jail. He’ll definitely be given more chances to stop than you or I would. (Then again, if you or I were facing these charges, we’d be awaiting trial in a jail cell.) The DC judge doesn’t seem like the type to allow shenanigans though. Eventually he’ll exhaust her patience and he’ll get a “next violation will send you to jail for contempt of court.” Trump will inevitably violate this and she might send him to jail.

Of course, the right will yell and scream about how this is “Joe Biden imprisoning his political opponents,” ignoring that Trump would have been given multiple warnings to stop his behavior and didn’t listen. What happens to Trump shouldn’t take “what will the right say” into consideration, though, apart from 1) shoring everything up against any good faith arguments and 2) increasing security against any crazies looking to hit at “those evil liberals that are persecuting God King Trump.”