The very very likely scenario is the ACC champ, the BIG 10 champ, the SEC champ and either ND or the XII champ. If OSU wins, then Baylor can be the XII champ by beating TCU with the Bears' third team quarterback. I know we don't care much about that scenario.
If Iowa were to lose to the Huskers and then beat the east winner, likely Michigan State, ,then there is a little possibility that the BIG champ wouldn't be there, but very unlikely.
I suppose that if Florida beat Bama, which I cannot imagine happening, but if they do and have already beaten Florida State, then they might be there.But as it relates to OU, I believe that if the Sooners win, we're in. Not a certainty, but hard to imagine anything else.
Baylor, OSU and OU all have one loss. So nobody is going with a loss this weekend. If Baylor wins in Fort Worth, I suppose that two XII teams could get in, if things fell right elsewhere. I'd love that. I could see Clemson getting in with a loss if UNC beat them and two from the ACC getting in.
There are still a lot of different scenarios in two weeks time. Lots can happen. But apparently, we win, we're in. The rest.... who cares?