Unless the economy collapses next year like it did in 2008 I don't see him loosing next year based on the current field of Democrats running. Plus incumbent presidents rarely loose reelection.
When GW got re-elected, I knew what time it was. It would take a minor miracle for Trump to not get re-elected. He's a racist and a xenophobe. He hates gays and "tells it like it is". Most white Americans vibe with that.