I have a tough time picturing it being anyone outside of the SE.
I get the argument for Cali, but things are trending in the opposite direction on the Left coast. Youth participation is way down because of concussions, the lifestyle is so healthy that there really aren't a whole lot of 6-4, 355 lb dudes walking around to load up the trenches with. Masculinity in general is frowned upon due to their political leanings, and they tend to instead have a laid back, chill demeanor. I know that a lot of Pac 12 schools load up the trenches with Samoan players, but there are only so many of them to go around.
In the North (midwest/NE) they don't have the same "win at all costs" mentality that you find in the SE. The closest is probably Ohio State, and even they have already released two legendary coaches this Millennium for reasons that no one in the SE would even pretend to give a crap about (unless of course it was happening to their rival instead of their team). Now I could maybe see an outside chance of ND, PSU or the Wolverines pulling it off, but they are obviously ineligible for this particular exercise. I just don't see it from Iowa, Wisconsin, etc, but you never know. I've been wrong before, and will be again.