There are like ten schools that are in the same ballpark as each other and bring big value:
Texas, Ohio State, Michigan, Alabama, Georgia, Notre Dame, Penn State, USC, Florida, LSU
Then you have a few more who hover under them like:
Nebraska, Oklahoma, Tennesse, Wisconsin
So, unless those are the schools you're adding. Its not additive to the Big Ten nor SEC.
UNC, Clemson, FSU, Oregon, Washington have solid value, but the only way you add to the big 2 now is if you get rid of lower fruit in there. Like, sorry Mississippi State, but you're out and FSU's in. It wouldn't bring bags of money, but it would, technically, add more, e.g. MSU is worth $30m/year, FSU may be $40-45m. It doesn't make everyone rich, but it swaps out for a bit higher value.
But, outside ND, there is literally no one left who will add to the SEC/B1G's media money. The only way to really make more with it now, is combine the B1G/SEC into one media contract.