Why cant the RAF simply randomly deploy more aircraft to Northolt more often, and publicise that as well? "Product placement" - is it called that? If its a turf war, and the RAF wants to keep its real estate then it has to surely populate it (with people and aircraft or alternate air defences/assets.
If it cant do that, then take it the land away and use the said land more intelligently for the common good.
* Brexit will mean you come here to work on a Visa. No designated job/company sponsorship = no working Visa. Just like the two non EU countries I recently worked in-this system generally worked well because the host nation applied the rules fully. We all know the present set up here in the UK right now and what that has meant- I could now see through recent experience and observation that many non essential EU people are already leaving UK even pre Brexit. It could be we will see a fall in working youthful population - heaven knows demand for housing of the types being speculated for Northolt may even fall.
Not wanting to get into a Brexit argument but destiny is in our own horny hands....