Per the HuskerMax board, Tim Brando of CBS is saying OU, Okie Lite, Mizzery, and AtM to the SEC, and that talks behind closed doors are underway.
Link
Granted, this is a CBS talking head that is discussing this, but they have been in bed with the SEC for some time now. If he's saying as such, then I'm inclined to think this is beyond closed-door discussions, and there's a sense of certainty in the air about this.
While I'm still not sold on the SEC going to 16, I am sold on something happening soon.