What if Anakin had stayed in the Council chamber like Mace had told him to? Mace seems to have gotten the upper hand over Palpatine. Palpatine would never submit to arrest, so Mace probably would have no choice but to end him. Like we almost saw happen.
And then does the senate, not understanding all this business about the Dark Side and the Sith, experience uproarious upheaval because the Jedi unilaterally executed their Chancellor, and consequently push for the Jedi Order to be outlawed or something? Or do more systems side with the Separatists, and the war drags on?
Does Palpatine show up a few years later, resurrected in a clone body on Exegol?
Kor