JER
I wonder if the current LGW BA schedule could be maintained and also add say twice daily LHR return to cater for connections?
Certainly BA now offer a wider range ex LGW for JER with the addition of JFK which with properly constructed tickets will allow onward US connections without the need to transfer to LHR by road.
Also LGW is soon to get CX which would also allow decent ex JER eastbound connections.
cs