My bet is that he tries his hardest to never set foot on US soil again. He flees the Bahamas to a country without an extradition treaty and who also doesn't want to prosecute him -- the Bahamas likely does. So in a way, I think he may avoid prosecution, but not because of US corruption, but because he flees.

This is also why SBF can not testify to congress in person as he will likely be arrested once on US soil as a flight risk. Also why he didn't attend the recent NYTimes event in person -- again he can not step foot on US soil right now or probably ever again.