Trump will try a dictator power grab. This isn't even questionable seeing as he already tried to do this. The only question at this point is if everyone else in power goes along with it or they scoff like they did last time.
Seeing as how there are a lot less principled people involved, and the oligarchs enjoy the idea of personal techno-fiefdoms the odds are at least non-negligible that the USA as a democracy could end.