Big rumour, coming from ACOS Manning, is that under the new scheme you'll be out at 55 with your gratuity but not get your pension until 60.
Unless of course you qualify for your pension and have an option point before the new pension scheme comes in. Briefing we had at Shriv was that they can't take anything off you already earned - and that includes an immediate pension. It would be anything earned after the transfer to the new scheme which would be payable at 60 rather than the whole pension.
So if you have an option point 2014/15, I think an awful lot of people will be looking to bank what they have before they find themselves scrabbling round for a job at 55 whilst waiting for the pension to kick in. The cynic in me says any such scheme to stop you taking your pension at 55 whilst leaving you trying to find a job is a deliberate ploy to get people to either PVR or leave at an option point so they don't have to pay redundancy.