Things are definitely setting up for a hot #3, 4 or 6 seed to make a deep run again. I say that because whoever emerges from Miami, Baltimore, San Diego is likely to be the team that finishes on a winning streak and is playing well - otherwise, they won't earn that spot. For example, if Baltimore wins its last 3, they win the North and are going to be a very hot team as the likely #3 or 4. But if they lose a game, they're probably out, and Miami is likely to be the #6 and they might well be on a 4 or 5-game winning streak at that point.
Strikingly, Baltimore and Miami both have a chance at leapfrogging as high as #2 - although that will require them both to win out, for Indy to lose to KC, for Cincy to lose at home vs. Minn, and for New England to lose at home vs. Buffalo in Week 17, after losing at Baltimore next week. That probably won't happen. But it's not impossible, either.