I think the B1G will add Oregon & Washington now, and Florida State, Notre Dame, Virginia, North Carolina, Clemson, and one more later. The one more will be interesting; I’ll guess Miami unless the SEC decides to change course.
I could see the SEC adding NC State and Virginia Tech, but it will depend on their on-field performance between now and whenever this blows up.
If all of this happens, the Big 12 will have its choice of programs like Pitt, Louisville, Syracuse, Duke, Georgia Tech. Those first four sound like pretty good fits in a league that’s going heavy into basketball.