I'm not holding out hope for the division, but if the Bills were to win out and if the Patriots were to lose either of their last 2 games to the Dolphins or Jets, the Bills would win the division as the tiebreaker would end up being Conference record where the Bills would have the edge with 3 losses to the Patriots 4.
The Pats have been gifted about the easiest set of circumstances given scheduling and fluky events like Chase getting suspended for their game that they still almost lost. Maybe the ball keeps bouncing their way, but Miami and the Jets to close the season won't necessarily be gimmes as divisional games.
That said, no game for Buffalo is a gimme either, so they need to take care of their own business.