answer is it doesn't - Leeds falls by the wayside as so many other UK destinations from LHR have done - I suspect NCL will be next t go after Leeds
Leeds may retain a service to City or Gatwick unless the runway is extended - same at ABZ tho th fares charged on the LHR-ABZ route and the interchanging will probably keep it going for a long time
Remember that the Japanese fly 747's on domestic routes due to shortage of capacity at Tokyo