There’s too much money to be made across the board. It won’t just be the SEC changing…it will be everyone at some point. You think the much hyped “super league” is going to form, and still schedule games against UT Martin and Toledo? Hell no.
This year, there are only like 2-3 games in the entire last 3 weeks of the season with profound playoff implications in the current set up, because of the crappy schedules with no one playing anyone. IU vs Ohio State, UGA-Tennessee, Texas-Texas A&M. That’s it. All the other games mean basically nothing (unless some heavy favorite loses), or there’s way too much ambiguity in the scenarios that no one can really quantify what they mean….so you can’t hype them at all for a broad audience. You greatly expand the number of meaningful games by expanding the conference schedules.
What you want is 6-7 games every week that affect the playoff picture, with 20-25 teams in contention some way or another until the end. Right now you’ve only got like 15 teams with a realistic chance for a 12 team field, with two whole weeks left.
You don’t get any of that added intrigue without divisions, or without scheduling models that create a clear pecking order in every conference. Hell, right now we don’t really even have conferences.