I cannot see the MAN-JFK route falling with BA as they launch their OpenSkies brand. JFK is to become a bigger hub for the airline and unless they need the slots (which may be the case) then the route will remain.
They don't have much room at LHR and the 767 doesn't operate from LGW so where would they put it.
IF it was to happen, AA, VS or BD would be on it almost instantly or CO/DL would increase their a/c size to 767 or even higher!
