I heard staging out of Amberley & OOL, don't know how they schedule it. I do remember being at an airshow at OOL maybe '82 or '83, at OOL though. Barry Hempels MIG displays were fun in the early 'Indy' years....
I volunteered at Opera Australia 'Opera on the Beach' a few years back. What I found was a lot of people who turned up, cared not for the Opera one bit...just to be seen..expect the same here!
I heard the Gloster Meteor 'Blue Note' many years ago at an RAAF show at Amberley....I suspect that if there were to be an appearance, 99% of the crowd would not understand what they were hearing....