Are you thinking it could be Georgia, TCU, Ohio State/Michigan winner, and Tennessee?
To be safe, I really think we need TCU to lose or the Pac12 not have a 1-loss champion.
Here is my assumption in no certain order:
1 - UGA is a lock for the playoff regardless if they win in Atlanta. 13-0 or 12-1, it doesn't matter for UGA. They locked up a playoff spot today.
2 - Ohio State or Michigan will win the Big Ten
3 - Clemson at 13-0 or 12-1 ACC Champ is in the playoff. 12-1 gets a bit more tricky but I think the CFP would put them back in on name and brand alone if they have a loss but still win the ACC likely over a top 12 ranked UNC team.
4 - This spot is basically down to 3 teams... Tennessee at 11-1, Bama at 12-1 (SEC Champ beating UGA), Ole Miss 12-1 (SEC Champ beating UGA)
For the 4th spot, Tennessee will get in if we are 11-1 and UGA wins in Atlanta. We are not in if UGA loses in Atlanta to a 1 loss SEC West team.... In that scenario, the big TCU lovers here would be heartbroken as their 13-0 Horny Frogs would not make it. UGA at #1 losing in Atlanta would not drop out of the Top 4... They lost last year by 17 points and dropped to #3..... Why would they drop further to #5 and out of the playoff just because of another 13-0 team? Simple answer, they wouldn't.
The CFP ranked TCU at 7 because they don't value their record and style of winning... TCU is struggling to win big against weak opponents and the rest of the schedule consists of 2 and 3 loss teams at worst. Additionally, whoever they play in the Big 12 title game will a 2 loss team at best.... They simply don't have remaining opponents that these 10-14 point winning margins will push them up the rankings....
Like today for example, they won by 10 over Texas Tech.... If Clemson comes back and wins vs ND, there is nothing that happened today with the top 6 teams that would cause TCU to move up the rankings... And that is where TCU's season is: relying on teams ahead of them to mess up... TCU can't just play their way into a playoff spot given their current margins... They need to be hanging 50 and blowing people out.... They aren't.