Unbelievable that this team has clinched the division and is in the hunt for the best record in the entire league. Yes, the Pats did have the easiest schedule of any team and that is a consideration, but this is a remarkable turnaround.
As to the playoff seeding, right now, we would host BUF in the first round, but that is probably not how it will end up. The simplest scenarios are based on either DEN beats LAC or LAC beats DEN, with the assumption that BUF beats NYJ and Pats beat MIA. If DEN wins, LAC would drop behind BUF and be the #7 and Pats would host LAC in the first round, and then play JAX or BUF. If LAC beats DEN, Pats are the #1 and get the bye, and their first playoff game would likely be HOU but could be PIT or BAL.
It is not certain that NE will take care of business vs. MIA. Losing to MIA means that the Pats will the 2 or 3 seed and the only real difference is that it could be one more team (JAX) where they would not have home field. They would probably still play BUF or LAC in the first round but then potentially have to go to JAX for the next round (this assumes JAX beat TEN in their final game).
I still have to pinch myself that I am really thinking about these playoff scenarios for this team.