DXB rumours have been around for ages, and will be for a long time. the pattern around the uk for routes to DXB only leaves Ireland and Southwest/Wales unserved.
As for JFK, what was interesting to find out was that the Zoom charter on the weekend was a chartered flight, shared with the LGW-JFK scheduled flight (UKZ101) rather than the a/c being specifically chartered for CWL-JFK.
I believe the other UK airports the one off JFK is also planned like this.
BCN is likely to return, or there has to be more to come from TOM as there are gaps in the schedule.
On the NCL thread there are constant mentions of CWL. A low-cost NCL route is needed. A 2nd daily GLA is needed. BHD and CDG are already building success. If Flybe do start these routes, be interesting to see if they set up a base or use a/c from other bases. As for CWL-EXT, could it be that it will be an EXT based a/c that will serve the CWL-NCL/GLA etc routes?