The decision was made two years ago that 'RAF 100' pron "RAFF one hundred!!" would be held by RIAT. I don't know if it a contractual obligation or a memorandum of understanding, but either way, that is the official way ahead. As is a show of farce at village fetes.
I suspect that after recent tragic events and the draconian legislation by the CAA; air displays as was will never be the same again. Presumption based upon 'temporary restrictions' to reduce risk not being superseded by anything that could be seen to increase risk. ie a relaxation of recent regulations. If I was fortunate enough to own one of the 14 airworthy Hunters in the UK; I would be mightily Peed off.
I suspect that the MAA are poised with pen ready to amend RA2335.