It's driven by the option where the SEC and ACC say they want conference only plus 1 game. It would be in response to FSU, GT, Clemson, and Louisville insisting on their in state rival for that 9th game. It frees them up to have that instate rivalry game. WVU and UVA are already scheduled to be in Atlanta that weekend. So we could play each other while letting the existing opponents out of their games.
I don't know if this will happen, but the Chick Fil-A people have suggested it.
(In response to this post by anotherdamnyankeehokie)