If Airbus NEO's the engines with Rolls Royce Advance and stretches the frame to a possible A380-900 I'd venture a guess and say that gap could be closed, especi

If Airbus NEO's the engines with Rolls Royce Advance and stretches the frame to a possible A380-900 I'd venture a guess and say that gap could be closed, especially on a CASM basis. Provided they keep the production facilities rolling until such a change might happen in the 2020s.