In 2016, Trump did his job simply by stopping Hillary from attaining the oval office. He could have gone into a back room and slept for 4 years and rested on his great achievement. Of course, he did so much more.
Same in 2024. Get elected. Sweep out the trash and appoint good people to seek justice for past crimes and prevent future injustices.
I would add that Trump will now need to play a strong role in picking his successor. It is evident that the political system cannot.