The sad fact is that the days of the Arrows are numbered. It is very difficult to justify equipping an aerobatic squadron with new or even second hand aircraft when we are struggling to provide a viable number of front line squadrons.
Slightly off topic, but does anyone know why the 2015 line up has a 3rd year pilot at No 7, presumably meaning he will fly a 4 year tour? Were this years newbies deemed not up to the job?