Doubt the A4 (Skyhawk) will be flying - the one at Ardmore doesn't have an engine so you'd have to tow it pretty fast. I suspect the Strikemaster will be up tho and they have talked about having the Airmacchi flying with a different engine (still a RR viper but not the 680 we operated them with)
Should be a good airshow, might have to turn up with camera