Hypothetically possible for Trump to stay in office as president after his second term? Yes, if the 22nd amendment was eliminated. Thankfully, there is a checks and balances and he is unable to remove the 22nd amendment.
I would like to think that 100% of the population, including his own supporters, would want Trump to not fight to be president for more than his 2 terms. We are a nation of laws and as Christians, we are commanded to be subject to them.
Do I think many of his supporters would approve of Trump trying to stay president after his 2nd term? Absolutely. I'm sure some are on this forum even. I just personally think they will be in the minority.