I honestly see this as the most likely scenario. Even if they are games that wouldn't have been part of the TV package in past years, I could see the Big 12 putting them on to withhold more money from NU. My understanding is that NU gets all of the profit from their PPV games, so I wouldn't be surprised if the Big 12 tried to stick it to NU, one last time.
The TV networks, NOT the B12 conference, decide which games they will air. The networks lose money by showing games with less viewership but do not lose money if UNL is on the BTN. And I think the B12 will do its darnedest to get a piece of any BTN money UNL makes.