There is no re-seeding, so the Dodgers play the winner of the 4-5 series and the Mets play the winner of the 3-6 series. (Assuming the Dodgers are the top seed and the Mets don't blow the NL East).
So we go Cardinals/Mets if we're 6th. At 5th it's Braves/Dodgers. No thanks.
4th would be worth getting of course, but I doubt that's happening. Better chance the Braves catch the Mets.