So, quick update for those awaiting updates with bated breath: American Airlines cancelled our RDU –> JFK flights around midnight last night. (I understand it’s because of the issue with the grounding of the 737 MAX airplanes, and American’s need to cover flights with suddenly a lot fewer airplanes.)
At any rate, one of our co-travellers, Ginny, reacted really fast to the cancellation and got all three of our reservations rescheduled to the same flights but 24 hours later.
Go, Ginny! :D