The Lions would make it a bit complicated. As has been said it is all contingent on us winning out. Since we finish the season playing against the Lions, provided we win our others this means that best-case scenario (for them) we would finish with the same record of 9-8.
Tiebreakers are then:
1. Head-to-head - we would be split with 1W 1L each
2. Win/Loss/Tie percentage in division - assuming we both win out by my count we would both finish with 4W, 2L in division (Lions W vs Packers, Bears, Bears, Vikings and L vs Vikings, Packers; Packers W vs Bears, Bears, Vikings, Lions and L vs Vikings, Lions)
3. W/L/T in common games - believe we would both finish 3W 5L
4. W/L/T in conference - both 7W 5L
And then next two would be strength of victory in all games and strength of schedule in all games. Right now from what I can tell it looks like the Lions are marginally ahead in both (.487 vs .438 SOV, .601 vs .565 SOS) but I'm not sure at the moment how that would all shake out when it's all said and done. At least I think those counts are right...