I don't think you need to ask "what if," as I think that has been the end game all along. All that's missing is the ability for the big conferences to be able to force out their grandfathered in dead weight schools. Once that's accomplished, the pull-away league basically becomes a pro league unencumbered by the NCAA, and concentrates a lot of wealth into a few dozen or so schools where athletics, primarily football and men's basketball, are paramount. That will essentially be the big reset for college athletics because once the big money schools break away, everyone else can exhale and stop with the athletic arm's race money pit, formulate practical conferences around geography/travel, and have actual student-athletes.