It may also not be out of the realm of possibility for the SEC to try and add OU to the mix as well.
Auburn and Alabama to the SECe, with OU and A&M replacing in the west. This would keep traditional rivalries together for the most part. Bama/Tenn, Auburn/Bama, Auburn/UGA. LSU would get left out a bit, since AU/UA vs LSU are huge rivalries. However, LSU would keep the Mississippi schools and add A&M, so they would still have most of their rivalries intact. Plus, Arky/OU is an old school rivalry that would be renewed
The OU scenario makes sense because if all this starts to happen, the ACC may stick together and go after Big East football schools (like West Virginia, South Florida, Rutgers, or Pitt)