CEA will be reviewed with all other allowances and will be as likley for the chop as anything else. With the proposed future RAF manning model with it's "proffessional stream" staying in posts for long periods compared to the 2 years, the idea is to create stability , reduce the need for SFA and the need for CEA. The proffessional streaming will create a core of experience and continuity allowing those likely to scream up to 2* level to move around and get to the dizzy heights whilst those not so bright will have a slower promotion path with greater stability.
My words condensing information recieved from COS Pers. (Not holy writ but pretty close)