Battle of Britain flypast over central London on Sunday

Look to the skies on Sunday lunchtime (28th June), as a WWII aircraft will (weather permitting) fly over central London.
Lancaster bomber flypast in June 2012 (c) ianVisits
Reasons are never given in the air traffic notice, but the location is Green Park, and the flypast is by the Battle of Britain Memorial Flight (BBMF), so it’s likely to be for the Bomber Command memorial next to Hyde Park Corner.
They’ve done similar flypasts on the same last Sunday in June before, so it’s a