Jersey I am led to believe will be OK.
Take off and landing are based on the amount of retractions left on one of the main U/C units. It will have to be changed out around August time, as long as there are not many more extra flights needed.
There is a window between air shows in August when this change out can be done and the team are geared up to do it.
Just to set some expectations: The display will be similar to the RAF one, as the display pattern was included in the lottery grant application. However I do expect it to be tame compared to last couple of RAF seasons in the 90's.
I hope to be proved wrong!