When I last transited through NCL I was talking to a girl in the BA lounge (Swissport) who told me that the AA flight had been pretty solidly booked for 2 weeks when it was dropped and that other business reasons were at play as opposed to poor loads.
I don't see a carrier moving in unless we see some form of low cost expansion airline moving in or a major US business player sets up in North East and can support hub flights, alas with the current US market and the potential of a whole new Government in a years time, I'm not holding out.
Still...whats wrong with Jet2's luxurious seasonal Newark service?!