Farnborough Airspace
Farnborough expects 50,000 movements per year by 2019. Not sure if that's a limit.
Fort Lauderdale Executive Airport currently handles over 160,000 movements per year, with executive jets all the time, cargo stuff, police and other helicopters, flight training, general private flying with a lot of Cirruses, twins, etc. Much more than we have in UK skies! Several smaller GA fields close by. Fort Lauderdale Hollywood International a few miles way, and Miami International around 25 miles away.
Look at a Miami sectional to see how they set out their airspace. Makes Farnborough's grandiose proposals a sick joke.
One decent radar controller for the area, working with Heathrow could deal with Farnborough in his sleep.