Depends if the SCOTUS rules against him.
Ballot eligibility? There’s no way SCOTUS rules against him - removing a leading candidate from the ballot is anti-democracy - SCOTUS will say let the voters decide. It’s slam dunk - Probably 9-0.
Now Immunity - that’s a different question - SCOTUS could rule against him on that because the “no one is above the law” cliché is too powerful. The nuanced intelligent justices that understand the Constitution will rule in his favor but he could lose that one 4-5.
But even without immunity, they still have nothing on him - he will win those cases on the merits - and more importantly - they will drop these cases after the election - if not sooner. The only purpose to these bogus indictments was election interference - they will be moot after 11/5.
In any case he won’t cut and run - that’s not his style.