I heard very recently; but pre contempary Govt, that the ranks of Air Commodore & Wg Cdr were being targeted for severe cutbacks that would subsequently effect future Grp Capt & Sqn Ldr promotions. I suspect that 'New Govt' will not change the perception of 'lean requirements' at these levels. The stats will tell all soon enough. The fiqure of 22 Air Commodore 'retirements' was mentioned though one person in the same audience had just heard of the establishment of a 'new' Air Commodore post, so perhaps there is a degree of smoke and mirrors involved in the reshuffle of stars.
Manning Announcements are out of date before they hit the streets these days.