We still have a chance if KC beats Pittsburgh, though it's unlikely. If the NFC North completely tanks (Cincy loses to Denver, and Baltimore loses their last two) then we're in.
At this point, it actually behooves us that Pittsburgh/Cincy and KC/SD play each other in week 17.
The problem is that Baltimore would have to lose to Case Keenum and Johnny Manziel. I wouldn't be surprised if things are over by the time we kickoff at 4:25 today.