If FBS conferences cancel fall sports across the board, it would simplify things, for certain. But, if schools carry on academically (one way or another), will they expect the scholarship athletes to stay in school and attend class? A significant percentage, if not a majority, of scholarship football athletes are there to play football - they don't give a donkey's rear about academics. They are there to play two, maybe three, seasons and then put themselves in the NFL draft. They dang sure ain't going to class if they there isn't any football to play.
The NCAA may have to extend eligibility for a year. OK. That works for the sport, and works for those truly motivated student-athletes that may choose to stay in school for their education. But, will the schools allow the other 'student-athletes' that may not be so academically inclined to take a leave of absence and come back in the fall of 2021? On the other hand, if the scholarship football SA doesn't stay in school, what the heck is he gonna do for a year? Get a job?