This isn't a conference realignment board or thread, but: The new TV deals around 2024-25 will be crucial. Right now, OU receives between $35-40M per year as part of the Big 12. When the new SEC TV deal starts in 2023, they will be receiving between $60-65M per year per school. The B1G will be in the same ballpark when they renew around 2025.
OU is locked into a grant of TV rights with the B12 until 2024-25. Any TV money OU receives for home games goes to the B12.
If the B12 can command competitive money, OU will stay home in the B12. If not, a move to the SEC or B1G is on the table. If OU gets SEC-style TV money, they can rebuild and upgrade facilities.