Probably...Chargers have two cupcakes and they need 1 win so they likely are in. The Broncos have to play the Bengals and Chiefs....if they lose both then the 7 seed might be Colts (two cupcakes) or Bengals (Steelers week 17).
I think the Bills likely with the 2 seed will play Broncos, Colts or Bengals in that order of probability. I feel like it is reasonable it could be the Colts. It could also be the Dolphins if lots of improbably things happen.
I see the Bengals have a better shot than the Colts, not exactly sure why....I get they are better than the Colts but the Colts play Giants and Jags and Bengals play Broncos/Steelers.