Breakaway conference - BYU, Bama, Ohio St, Clemson, Texas, Okla, ND, Georgia
There's the best case scenario. It's not realistic, but it appears that's not a requirement of throwing ideas out there.
Given Big 10's emphasis on AAU, they'd be more likely to take Colorado and Utah, which we'd all hate. (Full disclosure, I don't think they'd do that - if they're going as far as Utah, they're reaching the extra distance for USC)