I don't fully agree. The emergency runway is not too close to the main runway for parallel use - it is too close for simultaneous use. The biggest problem with the emergency runway is that it is too close to the parallel taxiway - you cannot have an aircraft landing or departing on 26R/08L when another aircraft is using the parallel taxiway. If a new taxiway was built, giving adequate separation, I think the use of the emergency r/w could allow a worthwhile increase in movements. Of course it is also being reported that GIP may sell part or all of its investment in LGW and any plan to increase movements would ramp the price.