Jags can easily lose to the Bucs and if the Browns beat the Texans, a Bills win puts them in the 7th seed.
Of course, the Colts would need to beat the Falcons to move in the division lead.
Browns also play the Bengals the last game of the season. Easiest path to a non-division playoff berth for Bills is having the Browns win
those 2 games and clinch the 5th playoff spot.