Just wanted to give everyone a "heads up" - I noticed today that for trains I booked for next month when Amtrak will no longer limit capacity, but which I booked while the capacity controls were still in effect, I have had my seat assignments changed - was moved in Acela F from single seats to shared seats with a table. I was able to restore my original selections since the trains were still fairly empty, but you might want to baby sit your reservations!