The playoffs are very realistic if the Packers win out. Assuming the saints, rams, bears, and cowboys win their respective divisions.
Vikings: likely to lose on the road to both the patriots and Seahawks who are fighting for okay off spots. Then of their last 3 it's bit harder to see either the bears, dolphins, or lions beating them. At 6-4-1 they do need to lose 3 of 5.
Seahawks: likely will win their next 2 at home against the Vikings and niners. But are likely to lose 2 of their last 3 against 2 divison opponents in the niners and Cardinals and the chiefs who will still be battling for playoff seeding. At 6-5 they do need to lose twice.
Redskins: likely to lose 3 of their final 5 with Colt McCoy at qb. They've got the eagles twice, the jaguars, titans, and giants. And at 6-5 they only need to lose twice.
Eagles: likely to lose at least 2 of the final 5 with the Rams and the Texans in back to back weeks. Also have tough division game with the cowboys. And at 5-6 they only need to lose once.
Panthers: likely to lose at least 2 of their last 5 with the saints twice, the falcons, bucs and browns. At 6-5 they need to lose at least 2.
And even if one of these 5 teams doesn't get to 7 losses that still would make the Packers the 6th seed. So idk what the percentages say but I do know that common sense says that if the Packers can take care of the hard part which would be winning 5 in a row when you haven't even won 2 in a row all season. Well the rest will work itself out and they be in if the two wild cards with a shot to win the tournament