Hell, Day loses the game tonight, maybe OSU doesn't want him back. With as much advantage as they have over pretty much every other program (most talent this year for sure, and most years has the best talent in CFB or in the top 2 or 3), doubt OSU is overly pleased with Day losing 4 straight years to Meatchicken, nor being able to win a championship. Now that they won tonight, and will be fairly heavy favorites to beat ND for the championship, they ain't likely kicking him to the curb. But his seat was definitely warm for a while already.
So even if Day hasn't given any indication, OSU would be far more likely to shitcan him than Day shitcan them. In fact, the thought of Day shitcanning OSU never entered my mind until it was brought up in this thread.