I've heard a lot of people say Trump will 'pull out' of Ukraine, which i doubt. Trump sent military aid to Ukraine during his presidency. I'm assuming there will be somewhat of a decrease in aid, but not a 'pulling out' as many right wing commentators say.
I doubt there's gonna be a qualitative difference in his foreign policy to be honest. Maybe just a bit more extreme when it comes to China, Palestine, Iran, etc.
US foreign policy is bipartisan.