16 team B1G = Four 4 team pods = AFC
16 team SEC = Four 4 team pods = NFC
The problem is that there are too many good teams in FBS to make a 32-team league work.
Not unless the B1G and SEC start cutting teams like Rutgers and Vandy.
Case in point, there are exactly 32 teams in the current B1G/SEC and that leaves out Notre Dame, Clemson, FSU, Miami and a few others like Oregon, Washington and yes, even Colorado who has both a Heisman Winner and a NT.
I think it's more likely you'll see maybe 50-60 teams in the new FBS or whatever they call it.