A couple of points:
I proposed some years ago (via the RAF News letters page) that the Reds ought to trade their Hawks for Tucanos. Ever seen what the Continentals can do with their PC-6/9 display teams? Nice. Turbo-props may please the bean counters, but would still show off piloting skills/RAF. Sure, BAe Systems would lose a marketing tool, but were contracts ever
really decided by an air display? Back-handers more like!
Not realistic perhaps, if the Brits have to 'compete' with the other jet teams.
I don't think the spotter brigade (speaking as a lapsed spotter) would miss their demise - it's the family (including tax-paying Mum & Dad) on their day out who would be the poorer.