FFP,
that is a huge concern for me - as you can see from my (genuine) age, my 38/16 point is in early 2016, but my 16 point will have be reached in 2015.
Pulling the rug from under my feet would leave a big hole in my planned finances. The IPP and gratuity are the only reason I'm currently staying in. Otherwise, I might as well leave now, accept the preserved pension and only be fractionally worse off. I expect common sense will have to prevail and a system of accrued rights be payable at the 38 point for those of us on AFPS 75 and the remainder preserved.
However, i've never planned my finances solely relying on the mil pension just in case something like this does happen. Plan for the worst, hope for the best.
H