Scenario: if both the Packers and the Seahawks lose
Both teams are playing rather tough opponents, especially compared to who the New Orleans Saints are finishing off with. The Packers also have the Bears on their road to the playoffs which might prove to be another speed bump slowing them down.
The Seahawks have the hardest opponent playing divisional rival San Francisco. For most of the regular season, the 49ers were the clear top of the entire NFC.
Should both these teams lose in the final two weeks and the New Orleans Saints win out, the clear No. 1 seed would be the Saints. They would be followed by the San Francisco 49ers (if they win out) then Green Bay, and Seattle would finish No. 5.
The New Orleans Saints have a real shot at getting back to the No. 1 overall seed which would cause the NFC side of the playoffs to go through New Orleans and the Superdome.
No matter what, the Saints need to strive to see a No. 1 or No. 2 seed. The first-round bye is the first priority, then the home-field advantage. Regardless, there is more than likely a higher than 50% shot of the Saints finishing No. 1 or No. 2 based on analysis and projections.