Have to agree with what has been said above. Remember, TBI submitted 'grandiose' plans to the goverment for a second runway at LTN and talk of 80m plus passengers a year by 2030. Basically all 'pie in the sky', it was never going to happen.
The goverment , in their white paper, have said no to a second runway, but given the indication that they would be happy to see LTN expand to 30m in the same period, with a single runway, possibly extended to 3000m.
In reality, 30m pax by 2030 is probably highly unlikely, given the expansion approved at STN, LGW & LHR, and even if if was reached, it equates to an average of only about 900,000 extra pax each year, for the next 25 years, which is single digit growth, and this is the best figure.
Unless BAA are broken up, nothing is going to change much, and LTN will always struggle against the 'Wolf' but nevertheless it will continue to provide new jobs and increased revenue to the local economy. So TBI, have, to a large extent, accepted that LTN( and they, TBI ) will always be the 'minnow', as far as the main London airports are concerned, and have to carve out their niche as best they can. At the moment there is spare capacity availabe and i'm sure they will tweak with the odd million here or there over the coming months in areas that may need it but large scale developments costing 'millions' is some way off.
Of course, they could always sell out to someone with bigger clout, both financially and with a more agressive management structure, and things could well be different again, but not vastly so I don't think, unless of course it was BAA, and that won't happen either.