Details of the restriction of flying regulations between 1045 hours and 1200 hours on 2 June 2022, when no aircraft is to fly below FL 175 have been published in AERONAUTICAL INFORMATION CIRCULAR (AIC) M 0332022 which is available to download using the link below.
Details of the rehearsals which will take on 24, 26 and 27th May are contained in AIC M 0312022. These also impose Temporary Restricted Airspace (RA(T)). The areas covered are extensive covering much of East England from the Wash to the Thames Estuary.
There are a number of other mauve AICs covering of RA(T)s for events across the country during the summer. Although there will be further promulgation by NOTAM, it would be worth taking note of these now to avoid disruption to your planned flights later.