Possibly some clever high level politics and an attempt to claw money for defence back from the FCO, by commissioning a study into the future of the 2 SBA's.
I can see Dhekalia back in Cypriot hands, but if Akrotiri does change hands, it will be to the USA or some kind of 'civilianised' facility a la Ascension, with skeleton manning at the airfield, and the quiet continuation of other activities.