Gonzo,
They would surely be happier with that, than not building anything at all? Atleast if you did build a new strip (even with capped movements), the operators would be more efficient, reduce their costs (fuel) and not have bored pilots flying around in the hold for ages!!
The greenies would also be happier, although they wouldnt understand at first, because there would be less pollution from holding aircraft, both in the air and on the ground. Everyones a winnner??
Of course, the best solution (for me as a pilot) would be to build runways at LGW/LHR/STN!!! I doubt that will happen!!