I'm flying J from IAD to LAX on a 772. Config now is showing new Polaris. I've been checking seat maps for the flights scheduled back and forth between IAD and LAX over the past few days and they have all changed to the old 3-class united configuration (8F/40J...) I'm guessing that mine will also be switched based on that. What I'd like to know is how will I get reassigned? Also, it seems like united considers the 8F and the 40J seats to be the same, so what are the chances of me getting one of those 8 seats?