That already exists, though. The striation between Power 5 vs Group of 5 is massive. That division isn't new, but the position of schools may change.
The degrees of striation are probably currently at their lowest point ever in CFB. Reductions in scholarship, getting everybody on TV, and having enough money where facilities were good enough everywhere have made it far more possible for any school with the right coach to win. It was one thing when an extra $30 million per year got dumped into making great facilities a little bit greater. Now those extra dollars' marginal utility goes absolutely through the roof.
I don't like to tangle up the "is NIL and pay for play right or wrong?" argument with the "will NIL/pay for play ruin college football" debate because they are two separate arguments.