I think there's a huge misunderstanding about what the NCAA is. The NCAA isn't some third-party organization that manages these universities. In fact, 95% of the NCAA organizational structure is completely made up of committees of actual university presidents. There's a governance council -- presidents. There's a Division I council -- presidents. There are legislative committees which are made up of presidents. Rules committees (presidents). Other than the president and an executive committee, and some additional staff members for investigations/administration, the NCAA basically is just a bunch of presidents self-governing themselves.
So when people talk about how these schools are going to get away from the NCAA... it's kind of a misnomer. These schools basically ARE the NCAA.
I promise you, these schools aren't looking to leave. In fact, many of them are the ones suggesting widespread reform. Many of the major presidents were at the retreat a few weeks ago, the one organized by Mark Emmert, and were suggesting things like rules reform, D-1 playoff system, three subdivisions, etc. These people aren't looking to leave the NCAA. They are the NCAA. They're just going to have a bigger voting bloc going forward.