Raid the B1G and ACC.

Four divisions of six teams each (5 year power rank in parentheses):

Clemson (2), Georgia (6), Florida (16), Florida State (22), Miami (24), South Carolina (52)
Alabama (1), Auburn (11), Miss St (20), Tennessee (36), Ole Miss (40), Vanderbilt (67)
Ohio State (3), Wisconsin (7), Michigan (8), Penn St (10), Michigan St (30), Kentucky (50)
Oklahoma (4), LSU (5), Texas A&M (19), Texas (25), Missouri (46), Arkansas (69)

Move to a 13 game schedule and an eight team Conference Championship Tournament comprised of the two top finishers in each division.

Forget the CFP. Who needs it? Let the other 106 FBS teams have their own playoff.

It wouldn't happen. I tend to view this as a Cold War between Big Ten/AAU schools and SEC, and they don't want a hot war.

If the SEC expands further, the Big Ten is probably adding UNC, Virginia, Ga Tech and (Notre Dame, or Duke, or Kansas).