If we win out, and the Steelers only win one of the two games against the Bengals and Broncos (assuming they win the other games), we're in at 10-6 and with the tie breaker. If the Steelers lose both, and we happen to lose a NFC game, but still beat the Jets, we're in at 9-7. If the Steelers beat both, we're toast.
This is just looking at KC, Pitt, and Buffalo, though. Not sure if someone else could sneak in there with timely wins.