I wouldn't get my hopes up for the Supreme Court agreeing to hear any of these 3 cases. It's very unlikely that the Court will. I'd be shocked if it did so in either the Georgia of Michigan case.
The Court receives many thousands of cert petitions each year and grants something like 1% of them. But pretty much all of them are considered at conference. That's where the Justices decide, among other things, whether to hear particular cases. Cert petitions being scheduled for conference is fairly perfunctory. And at a typical Friday conference the Court might be considering a hundred cert petitions. Typically we know the following Monday whether any petitions are granted. Almost all are denied without comment, though every now and then we get a written dissent from denial.
That said, I'm still hopeful that the Court will agree to hear the Republican Party of PA v Boockvar and Scarnati v PA Democratic Party cases. I think the Supreme Court of Pennsylvania got it wrong when it came to counting absentee ballots that arrived late and I think there's an important legal issue that the Court needs to provide clarity on. That said, those petitions have been relisted (i.e., scheduled for an additional conference after having already been scheduled for one) a couple of times now. That could mean that the Court has decided to deny cert in those cases but someone wants time to write a dissent from the denial. I could see Justices Thomas and Alito dissenting from such a denial.