The future of the ACC could be a repeat of the old Big East breakup...
However, the ACC was more of a basketball conference than it was a football conference until they gobbled up a bunch of Big East football schools and Florida State.
The Big East was a basketball conference too before they went after the TV revenue football brought in. They were doing OK as a football conference until they were poached by the ACC (Miami, PItt, Boston College, Notre Dame, Louisville, and Virginia Tech), the B1G (Rutgers), and the Big 12 (West Virginia). I think I got them all. Conceivably the same thing could happen to the ACC as they could lose Clemson, Florida State, and several other schools to the growing mega football conferences. That could put a real dent in the conference revenues.