It’ll be interesting to see how southern, heavily white suburban areas swing after Trump is no longer on the scene. I think the longer he stays relevant that these kinds of places like Oconee, Columbia, Houston, and Forsyth counties slowly but surely continue to drift left. The older voters in Columbia County are almost all white and probably 90%+ Republican, and I don’t think the voters replacing them will match that.
Forsyth will get a lot of college educated transplants and should keep moving left. But it will be interesting if the others drift back to the right, (perhaps with an assist from a Democratic party that moves too far left).