The Monday Night Football game between the New Orleans Saints and Atlanta Falcons will probably be best remembered for Drew Brees' performance and his breaking of the single-season passing yards record, but it had large implications in the NFC playoff picture as well. With their win, the Saints clinched the NFC South division title and will host at least one home playoff game.
While Atlanta were still fighting to win the division, they were locked into a playoff spot due to other results before the game started. They can be the fifth or sixth seed. They're currently sixth, and would move up if they win in Week 17, while the Detroit Lions lose.
The Saints are in a similar situation with their seeding. They are currently third, but can move up to second if they win in Week 17 and the San Fransisco 49ers lose. However, in the current scenario, the Saints and Falcons are likely to play a rematch at the Superdome in the first round of the playoffs.