It's my opinion that there is no longer a group of 5. It's really a group of four because the membership in the PAC 12 /10 is fractured. The Cal, Standford, Oregon, and Washington are not interested in the Big XII and that leaves Arizona, Arizona State, Utah, and Colorado that are in the Big 12 corner. Oregon State and Washington State probably have figured out that they are Mountain West candidates. The Big XII survives but the media rights are not going to be based on football. Most likely Fox, CBS, NBC and ESPN will want the Big XII for men's and women's basketball.
It will be interesting to watch how the Big XII tries to sell their football and basketball games. On Saturday's the OTA games for football and basketball will be dominated by the SEC and Big Ten. ABC will probably carry an SEC game in the 2:30 slot and/or the 7:00pm slot. It seems that Big XII football games would land primarily on ESPNU or ESPN2. I don't see ESPN Disney being able to generate the advertising dollars to pay a lot for the football games. If CBS, Fox, or NBC want programming for their other cable channels the likely hood of a bit higher media payout is possible. There is a diluted audience for those football secondary games on cable channels. Basketball provides a lot more games to broadcast on more nights so that is where the value is at for the networks.
It is my opinion that athletes will become employees of the University they attend and also be able to get NIL money. When you have two conferences with more resources it creates a huge advantage. When an employer can pay more the pool of recruits is going to be more and the best coaches are going to follow the money. With transfer rules in place your going to see players transferring to higher paying programs in higher numbers. It's a new world.