Cranwell is probably unsuitable. The runway is fairly modest, parking space is modest too, but it's also a fairly long way from the A1. The only realistic site is probably Cottesmore. Leeming would probably work but it's probably too far north, unless one takes the view that it "balances" the loss of the Leuchars show.
I guess the planned review will tell us where we stand. I think we can all predict what the outcome of the review will be. Doubtless they will claim that RAF participation should be confined to appearances at other shows not staged by the RAF. This is no great loss in itself because the RAF already provides so little direct participation in its own show. It makes no difference if the same level of participation is simply exported to another show that isn't organised by the RAF.
The worry is whether there IS any other event that the RAF could participate in. As it is, it looks as if there's only RIAT - a hideously expensive event that is way too south of a central location, and notoriously difficult to get in and out of. Let's hope we do not get into a situation where the RAF's only "event" is some sort of part in the increasingly questionable RIAT event.