Thanks PPRuNe Pop.
Regarding growth in long haul verses runway length the latest long haul aircraft have a surprising runway performance. The 787 in particular and I suspect the A350 too would probably render a runway extension a waste of money. Bridgepoint have stated they are happy with the runway and infrastructure work will only be on the terminal. Sadly as previously stated parking is becomming a real issue and unless this is addressed growth will be severely restricted.