Today I received a response to my FOIA request, which was prompted by John Burroughs claims that the MoD still had UFO Policy files which it had yet to de-classify. Attached are scans of the letter. Indeed, there are a number of files waiting to be released. This I believe is still the tip of the iceberg, it’s just being clever enough to know what to request. It looks like they will be available for release via the National Archives in late September 2015.