Well when you look around the net it seems the direction we are headed is destined to be the dissolution of the Big 12 (or perhaps the ACC) and ending up with 4 conferences with anywhere from 16 to 20 teams a piece. The Big Ten is about to get a huge boost in revenue from new tv contracts which estimates say will net nearly 40 million per team before any profits from the Big Ten Network are factored in. The SEC is likely to receive the same whenever its contracts are renewed.
The Pac 12, ACC, and Big 12 lag way behind those numbers. The Pac 12 can't get its network off the ground, the ACC can't get one started at all, and the Big 12 doesn't seem to want one (except OU).
I suspect there is going to be a lot of movement in the next few years, driven by the Big Ten wanting to expand its reach ever further south. The SEC will respond in some way so as not to fall behind. The Big 12 or ACC is going to get raided. The PAC 12 is really on an island and unless they can get Texas, they're going to be in a sore spot. They won't lose any teams, but there really aren't any to add except Texas (and whoever else from the Big 12 such as Oklahoma). The ACC is in a vulnerable situation but not quite as bad as the Big 12, since they have their partnership with Notre Dame. But a 50 million dollar payout per year is going to entice any university. Even a North Carolina or Virginia.