I think the BBC may be reading far too much into this, if I recall correctly RAF Mildenhall was due to close,and it was announced a few years back.
Also their lead photo shows a KC-135 at Prestwick,Prestwick flights are unrelated to the Mildenhall closure.
https://www.bbc.co.uk/news/articles/c32l4lw12z7po
Mildenhall has a NOTAM that the base is closed this week. It could be media over-reacting
QuoteQ0139/26: Mildenhall: Aerodrome closed
Q) EGTT/QFALC/IV/NBO/A/000/999/5222N00029E005
AD CLSD. FLT DURING CLOSURE PERIOD MUST BE PRIOR APPROVED ACFT,
HAVE OPR NECESSITY OR BE HIGHER HEADQUARTERS DIRECTED MISSION AND
MUST BE APPROVED BY 100 OPR GROUP COMMANDER. CTC COMMAND POST AT
238-2121 DURING CLOSURE FOR APPROVAL/PPR REQ. CTC AIRFIELD
MANAGEMENT AT 238-4130 PRIOR TO CLOSURE DATE FOR APPROVAL/PPR REQ.
FROM: 10 Nov 2026 18:00 GMT
TO: 13 Nov 2026 06:00 GMT