The traditional USA routes are probably in 'shock mode' while the new direct options bed in, as routes like LAX/BOS/MIA will be taking away connecting pax from the likes of NYC etc.
USA destination number 13 started today with Houston departing an hour late, and number 14 starts next summer with SFO. strong rumours next week will see destination 15 be announced, so, the east coast hubs will probably be in a state of flux for a while yet.