The UK CAA will not allow them to fly in this country on the civil register due to many reasons including in-service safety record, lack of spares and no backing from the design authority (BAe). Many of the airframes have used all their available fatigue index.
The chances of BAe or the RAF restoring one to flight are somewhere between slim and none.
The guys at Brunthingthorpe LPG (shown in the pics) do a fantastic job of keeping the planes for fast taxi runs.www.lightnings.org.uk
The only lightnings that might fly again are the 3 remaining airworthy jets that belonged to Thundercity or the one being restored in the USA, but sadly it won't happen in the UK.
Shame that you'd have to go to another country to see a part of our History
in action; it certainly will be the last, fully British jet fighter.