I'm not disagreeing about the UT/OU part. Hey, I don't think they'll make a strong, large addition either. I think they'll do the bare minimum to get a CG in the short-term (during the duration of their GoR), but likely fold once the GoR expires and the top tier members (UT, OU, KU) leave for greener pastures.
All I'm saying is that the GoR is long-term. Can it be challenged and negotiated out? Maybe. I have a hard time thinking that Texas wouldn't sign something that they felt they couldn't get negotiate out of. But that's the risky approach. The no-risk power play for the B12 is to add all of the top G5 schools left. UConn and BYU are the two biggest brands, BY FAR. You add those two along with a few more football recruiting areas and good programs (Boise, Cinci, UCF) and a 6th TBD member (probably Houston on orders from Texas) and see what happens as your GoR is in place. When it expires, everyone can decide where they want to go (or stay). It will likely depend on what kind of TV money this new, larger league would generate but adding Orlando, Hartford/New Haven, Cincinnati, NYC, and BYU's national brand is a big step towards a TV media contract that would trump the ACC. Games that span 3 time zones. And not Tulsa vs Temple games. Good games with Texas, OU, BYU, Boise, etc.
But, again, I know full well they won't consider something like this. This is a dead conference walking.