Sad indeed to hear that one will NOT be kept flying.
Lets hope there is just as much support, photographers, enthusiasts and local congestion at LHR when the final one departs LHR for its "new home" whenever that may be.
That will be the VERY LAST CHANCE EVER to savour this delight slipping away as we speak. So god damn sad.
The LHR home will probably be inside T5 as construction of the final building gets underway. 'tween now and then it will probably be in on of the LHR Eastside blocks where nobody except can staff can get to see it.