Quote: "The only downside to this is that the start date of Autumn 2013 is a longway off yet and as much as I want to see Gatwick with further long haul expansion the airport does not seem to hold on to them very long, it seems for every new long haul airline gained the airport seems to loose one at the same time meaning that by the time Garuda do start flights to LGW how long will the likes of Air China be at the airport."
The majority of longhaul flights at LGW will remain there only until they acquire slots at LHR at a price they can afford. It's as simple as that.