I think all of NK bases remain, (ACY withstanding), because on the map, it’s exactly what JBLU says they want. They now have a presence in all areas of the country, allowing them to operate in the major hubs while
not having to rely on a hub and spoke legacy model.
To say JBLU is a northeast airline would be to call SWA a Texas airline back in the day, you get bigger and things change. Delta was a southern airline until I became a northern airline as well, and then a west coast airline, snd then “the” NY airline.