I really think things start blowing up when the teams start acting like TEXAS. When teams like OSU, Alabama, etc start demanding they get a bigger piece of the pie, they will destroy the whole system just like Texas did with the SWC and the Big 12.
I think their conference mates will put up with it for a while to appease them and to remain part of their club, but eventually it will tear it all apart.
We have all seen the attitudes some of these places have.. they think they are owed it, that they carry the rest, not understanding they need the rest, to make their seasons etc. Someone still has to lose, someone still has to be there for the other sports, someone still has to be part of their system. When their egos finally take over is the beginning of the end.