I will repeat that I can't imagine a scenario in which Texas or Oklahoma would join the Big Ten. I don't see why the Big Ten would invite them nor why they would want to join. Their fans don't want to travel so far for almost half their conference games. You may recall the debate by many Husker fans about the travel increase caused by our switch from Big 12 to Ten. UT would add about 800 miles to every one of our travel distances and basically only Nebraska and Iowa are driveable on a weekend. The Big 12 has a couple 'road' trip games but rest are fairly easy drives on the day of game in many cases.
OU and Texas have both struggled of late to find wins in a weakened conference. They sure as hell don't want to schedule losses going forward. Long travel games on an annual basis to Penn State, Ohio State, Michigan, Michigan State, Wisconsin, Iowa, Nebraska and of course those pesky games in Northwestern, even Rutgers is getting talent now. The Big 12 needs to recruit a couple programs in to the conference that have some national presitige but are very winnable foes on the field. They are hard to find but certainly needed. Big Ten is same way.