Its all about money folks. The b10 and sec network will make $50 per school by 2020 and probably $100 million by 2040. Everyone left out loses. If you get the invite, you go. ESPN may be perfectly fine having the BE and ACC die with the new SEC network. Fox only cares about the B10. It comes down to 2 super conferences and a 2nd tier 3rd conference out west. Texas may hold out and try and keep the B12 alive for another 10 years - they probably go SEC and maybe just maybe B10. The NC teams will be from the SEC or B10 and a small invite at times from the PAC10 if a team goes undefeated.
However, the days are numbered for nationwide interest in college football - if only 32 plus 1 teams are viable anymore for NC contention, what's the fun in that. I think most people will get tired of it all eventually - locked out by money doesnt interest me if the underdog never gets a chance. Basketball is more inclusive and allows for the occasional cinderella team to get into a NC game like Butler. I know I will stop caring about college football is Syracuse football goes down the crapper and just watch pro football anymore.