We'll see if the Steelers can avoid being embarrassed again. If the Steelers have another game like last week they could be out of the playoffs. They have another couple contenders on their schedule (Colts, and Seahawks, possibly the Ravens depending on if the first spot is up for grabs still). They have a tough road to the playoffs with a backup QB, and really can't afford to lose another "easy" win.
Another notable one is the Colts vs Bengals. The Colts have the 7th seed and needs to keep winning to stay ahead of the Texans. The Bengals have a slim playoff shot after beating the Jags, and could knockoff one of the teams ahead of them.
Browns vs Jaguars: The Jaguars are only a game ahead of the Texans in their division, and can't afford to open the door for the Texans to steal the division late in the season. The Jags have to face the Browns, and Ravens back to back. Forget the top seed, they could easily get knocked down to a wildcard spot. For the Browns, they have an inside track for a wildcard spot, but have been in a losing spiral. They really open the door to losing that spot to the Texans or the Broncos (possibly even Bengals if things go a certain way) with another lose or two and they have another couple tough matchups coming (on the road against the Texans and on the road against the Bengals).
Aside from those, the Falcons also can mostly lock up their shit division if they beat the Buccs, and the Broncos can keep in the playoff picture if the win.