As Jay Sekulow explained it today on his program, the Supreme Court is not going to order a stay and make a substantive decision at this late stage of the election.
However, they could very well make a decision on the validity of the mail-in ballots from states like North Carolina that will be counted after the election.
Correct. However, if I read the decision correctly, the NC GOP needs file for an injunction requiring that any votes received after the statutory deadline be kept separate and not counted until the case is resolved. They can’t just assume that will be done, and once the votes are counted, the case is moot.