I would think somewhere close to Atlanta might work. Close (relatively) to population centers in the south and easy to travel to. Plenty of hotel space etc.
I'm spoiled having Denton Hill about 2 hours from here, plus my camp is only about 30-40 minutes from there. Unfortunately, it falls on a bad weekend for me, the same weekend we do our family re-union every year. I'm going to try to make it up on Friday this year though.
If someone does set one up in the south, I would think early spring - sometime in March maybe - would be good. Not too hot yet there, and us northern guys are good and ready to get out of the cold by then.