Cost of relocating Lyneham to Brize is around £200 million, payback date around 15 to 20 years provided nothing else changes....
That's more than enough to run Lyneham for many years, and you get 2 more runways, a Crash cat 4A diversion/ PD in the south of England, you can fly 24/7 without much complaint from the locals (Tac/NVG at Brize - I don't think so!), even circuits at the weekend at Brize is pushing it.
This argument has been thrashed out endlessly, Lyneham will close, but don't let anyone be fooled that it will save any money, except perhaps in the very long term, but it's now that we're short of cash.
Besides, in 10 or so years when they want to make more cuts, they'll have nothing left to close! (Mil ramp on the side at Birmingham maybe?)