BYU says they still have some but they'll put you wherever they want. We've done that before and they changed our seats a couple times before the game. We'll probably have worse seats but don't like being at the mercy of last minute scrambles to get tickets.
You'll probably be fine but feel you'd be better off getting them now even if need to sell a couple extra if people end up bailing. Believe the demand will be there to sell if needed.