What I'm hoping most is for a full season. I don't really care when it starts. Worst thing would be something like an 8 game season and have the committee try and decide the 4 best teams when there may be more than 4 teams sitting at 8-0.
In theory, of course, this "could" happen (and God knows, I should be betting on it since what almost always happens is the ONE nightmare scenario that we don't need).
However.....
since all 5 conferences play championship games, the maximum number you could possibly have is five Power Five Conference teams. The divisions play round robin, which would leave at most two per conference - and they'd play head to head. Thus, you'd wind up with a maximum of five teams.
And the likelihood of that happening is remote.
What's MORE likely - and problematic - is a plethora of one-loss teams across the country where the team that doesn't even win the division looks like the best team in the conference (insert 2011 and 2017 examples). Suppose you wind up where every single team in an eight-game season has a loss. You have a much smaller set of data points, and you also have the temptation of the committee to salvage the financial wreckage by picking the biggest draws that will guarantee more money across the board: Ohio State, Alabama, Oklahoma, and Notre Dame.
We are far more likely to have 10-12 one-loss teams than five unbeatens given that we would be setting the cupcake contests aside.