never say never
Whilst it is all great fun debating and playing fantasy airports, some of the posts here are really in in cloud cuckoo land.
Don't underestimate UK red tape - there is simply not a hope in hell of 'developing' North Weald from a political perspective, planning perspective, national aviation policy perspective, or legally, with NATS and CAA and EASA compliance/approval/moral support or otherwise.
This is not the USA (or France for that matter) - we are the worse possible country in the western hemisphere to do anything logical so far as aviation infrastructure is concerned. Any other country in Europe, you might have a small chance - but not here - there are barriers that would make the most maverick of dreamers cry.
Sorry, but its a complete waste of hot air.
It will forever remain unlicensed and as it is today - or closed altogether - or used by Top Gear when Dunsfold is developed!