I was reading that the way he could serve a third term is that he stands for VP in the next election and the stooge who wins as President resigns, allowing Trump to assume office. Something about the constitution saying he can't stand for President, but the VP shall succeed to the presidency in such a case.
Something to look forward to.
Can Trump Serve a Third Term? - FactCheck.org
How Trump could try to stay in power after his second term ends