As unlikely as it is if they win out they'll end up with a 13-3 record and the first seed with home field. It would still be possible for the Patriots and Raiders to finish at 13-3. The Broncos would own the head to head tie breaker over the Patriots. The tiebreaker for the Raiders would likely come down to strength of victory which would likely be in the Broncos favor. I doubt it would happen but it's something to think about.