There is an article out on Sports Illustrated that discusses the possibility of a "super league" for college football. 69 (nice?) current P5 teams plus Notre Dame to form seven divisions with 50 G5 teams competing via promotion/relegation for spots in an eighth 10 team division. The set up up would feed the 8 division champions plus 8 wild card teams into a NFL style playoff to determine a champion.
The article is short on names and specifics, and SI is not without credibility issues, but the story does set out an idea of what college may become in this new environment: NFL Light.
https://www.si.com/fannation/college/cfb-hq/college-football-super-league-proposal
