It looks like Packers are still in the running for any home field advantage spot, mathematically speaking. Source
PlayoffStatus Spot #1 - First Round Bye[list=1]
Packers ties the Buccaneers Seahawks loses or ties to the Eagles[/list]
Spot #2 - First Round Bye[list=1]
Packers loses to the Buccaneers Packers ties the Buccaneers, and Panthers beats the Saints, and
Vikings ties the Falcons[/list]
Spot #4 - First Round Home Field Advantage[list=1]
Packers ties the Buccaneers, and Vikings beats the Falcons
Packers loses to the Buccaneers, and Vikings beats or ties the Falcons
[/list]
Spot #3 - First Round Home Field Advantage - No elimination cases were found for this spot
Spot #5 - No elimination cases were found for this spot
Spot #6 - No elimination cases were found for this spot