I think the most intriguing remaining scenario is an undefeated or 1-loss BYU making but then losing the CCG. On paper
they would surely still be a CFP team, but would it still happen?
A 1-loss Big12 team not getting in and multiple 2 or 3 loss SEC/Big 10 teams getting in is what I'm most afraid of (especially if BYU is the scorned team)