At the risk of putting the cart before the horse....
Lions have a 2 1/2 game lead in the North with seven left for the Lions and six left for the Vikings, two against each other.
If the Lions can win their next three (v. Packers, @ Saints, @ Bears) and are sitting at 11-2, while the Vikings go 1-1 (v. Bears, Bye, @ Raiders) and sit at 7-6, OR the Lions go 2-1 and the Vikings go 0-2, the Lions would clinch with a win at home against the Broncos, without having played Minnesota even once. Ideal for many reasons, not the least of which would be that the home crowd deserves it.
If the Lions go 3-0 and the Vikings lose to the Bears, we would actually be watching the Vikings/Raiders 4:05 game in week 14 with the chance of clinching with a Raiders victory.
Most likely might be clinching the following week on Christmas Eve in Minnesota. Any later and you start to sweat, with Lions/Cowboys and Packers/Vikings in week 17, followed by the final showdown in week 18.