I'm not sure what's going on with TCX, I think they may be waiting on confirmation of aircraft before announcing new routes, to which they have done this before.
Reason I say this is because LAS is back down to 5 weekly and BOS back to 3, to which they were added to the timetable,e and removed again, just like FRA-LAX/SFO were, so, I wonder if someone jumped the gun. We also have routes like Tunisia going to be put back on sale, and moving bases like STN/BFS to a leased aircraft, which shows S18 is far from done.
For an airline like TCX, they have until about mid-November to announce S18 routes, so, I personally wouldn't worry about routes until then.
In terms of JFK, I would certainly hope a 2nd daily is on the cards, they have captured the market and run away with it, a 2nd daily would cement that place.