I'm doubtful, TCX have scaled back long haul at LGW recently in favour of MAN, this summer they have just 3 weekly flights, 2 to Cancun and 1 to Holguin! Norwegian will serve JFK, FLL and LAX from July though so you could argue that Gatwick will have something similar (minus the package holidays, unless TOM decides to start selling seats on Norwegian's long haul flights as well).