First off I work in Airports. Second LSC is gone after the lease is up. They are going to move everything to OSC, and only leave small offices in JFK AREA. Take a moment and look at routings. RDU-BOS ( dL-6 /B6-6/aa-3/f9-1). We need to look at more opportunities.
I don't mean to sound rude but there is a lot that goes into making decisions about routes and where facilities are located. I don't know specifics about B6 but I'm going to guess they don't make these decisions based on gut feelings or innuendo.
There are so many factors that go into adding a route, not adding a route, adding capacity, reducing capacity; there's a lot of analytics involved. It doesn't always work out as expected, and that is why all airlines continually make schedule changes and add/eliminate routes and cities.
It's the same with corporate offices...B6 gets a lot of mileage from being based in NYC, I personally don't see that changing when the lease is up (anybody know when that is?) In fact, I would tend to bet that they remain at their current HQ office in Queens, although there may be some changes in the size of the footprint. What that will look like is anybody's guess. There are a lot of factors that go into selecting a HQ, cost being the biggest but hardly the only one. So unless you are involved in the process - I doubt you are - then there is no reason to spew off speculation as fact.
In LGB, the B6 writing has been on the wall for some time, and this may be either a continued draw-down of both services and routes, or it could be a complete closure. That's assuming that there is even bad news being delivered today. A complete Jetblue withdrawal from LGB seems a bit drastic to me, so somewhere in the middle might be more realistic. Even a small reduction is too bad because I actually like LGB airport, even if B6 doesn't. I've passed through a couple of times and it is a pleasure - one of the nicest small airports in the USA, in my opinion.