The ACC Leftover Conference may look like the follow which from a FBS perspective better than becoming a football independent and seeking membership in the Big East.
Duke
Loiusville
Pitts
Syracuse
Wake Forest
Boston College
SMU
Cal
Sanford
Georgia Texh
NC State
UConn
————-
Excluding
Clemson
UVA
UMiami
UNC
Florida State
This is fair. I would be certain that NC State will also be going to the SEC or Big Ten (they're part of that magnificent 7 group).
In 2030, the Big 12 contract is up. Can they get a TV deal that is much more than the ACC's (which runs through 2036!)? If it is, that's where you can see Pittsburgh, Syracuse and Louisville all head to the exits. They'll have old Big East schools Cincy and West Virginia waiting for them.
And, that likely makes UCONN leaving for the ACC a much more difficult decision.
If the ACC ends up losing all 7 schools (Clemson, UVA, Va Tech, Miami, UNC, Florida State, NC State) plus Pittsburgh, Syracuse and Louisville, I am not entirely sure the conference survives. Does Duke, Georgia Tech, Cal and Stanford try to join the Big Ten in a SMU-like arrangement where they get no pay outs?
Notre Dame's $$$ is not really that contingent on the ACC. Maybe the Big East can strike a TV deal that can go up as the conference expands with FBS-only schools (i.e. only major-conference schools) and the money is negligible for them.