This new tax system, will play directly into the hands of the Euro hub base carriers.
Pay £12 in 2012 to go to BKK via FRA / CDG / ZRH or AMS or £85 to fly direct from LHR.
If you are booking for 2 pax, then absolute no-brainer to go via Europe.
So basically, after this who needs a 3rd runway, when Brits will be using the 4th, 5th and 6th runways in Europe