i think OU would seriously consider the Big Ten BUT I also seriously doubt the governor and others in State high elected offices would consider letting the school disconnect conference wise from the Okie State as well. Oklahoma has indicated many times it wants to remain tied up with Texas but I really think Texas just isn't what it used to be with all the competition from the many Texas schools. Even Baylor's teddy bears are not afraid of the big bad longhorns anymore. Not so sure Texas really runs the show. The TV deals just may not be quite what they were hoping.
However, I would also have some serious doubts about whether the Big Ten really wants OU. They bring very little to the table in terms of national rep outside of the football program. And why would Ohio State, Wisconsin, Penn State, Nebraska, Michigan, etc want to bring in another powerhouse that would seriously threaten to upset the balance of power. There are already losses built in to all but two teams before the conference champ game. Add OU and you can figure the chances of ANY team finishing unbeaten drop about 50% more. Running the table in the Big Ten is probably about a 15% shot for Buckeyes, 10% for Michigan and Mich State, 5% for Wisconsin and Nebraska and maybe even less for Penn St. Throw a game vs Sooners in to about two thirds of those teams as well and you cut those chances a bunch. The Big Ten teams at the top don't want or need more tough tough opponents. Just my opinion. I loved the NU vs. OU games - they were lump in your throat, gut wrenching affairs almost yearly for decades. At present, OU would be favored over all but perhaps Ohio St. They are certainly a couple steps up for us. We don't need more losses on the schedule any time soon.