Unfortunately, the Lions will be playing to win that last game as Jim Caldwell needs just about every win he can manage to save his job.
The Bears playoff chances are still very slim. They really have to win out to have a realistic shot because of all the tiebreakers they lose out on. One of Minnesota or GB should be locks for a wildcard spot. Atlanta still only has 4 losses, though I feel like they could lose to anybody these days. They could conceivably end up with 7 losses. Seattle is about as average as their record indicates, and they still have to play AZ again.
There should be no way the Bears lose any of these next two games. If they do, it would be a colossal disappointment. The real test comes against Minnesota and Tampa Bay.