WEBF - I don't think the MoD will ever get rid of Wittering. I believe the agreement from the original owner was that it would have to be converted back to farmland before they would take it back. It is not ours to sell.
There are rumours of the flying at Wyton (57(R) Sqn Elementary Flying Training, Cambridge & London UAS's and 5 AEF) moving up to Wittering.