There really is no easy route to the playoffs for the Bears. They are going to have to earn every bit of it to get in. They could potentially be playing for the division next Sunday against Philly if Detroit loses their next two and GB loses to Pittsburgh, but the chances of that happening are slim. Not to mention the Bears would have to beat the Eagles as well to clinch in that situation, which is no given either.
If Detroit wins tomorrow night, I think they win out. I don't see them losing more than 1 game the rest of the season, and I think their best chance for that one loss is against Baltimore tomorrow. I think they have NY and MIN coming up after that.