For some time now, some people have been suggesting that at the eleventh hour (ie now) Trump will resign and Pence will become President with immediate effect.
Pence's first action as the 46th President would be to pardon his predecessor for all crimes committed while in office.
Sounds a bit 'House of Cards-ish' but I'm sure it's not totally impossible, especially if it were to keep the Trumpet out of jail for the rest of his life, which is what he deserves.
Joe Biden would then become the 47th President, as planned, on 20th January.