I see that, in my last post on this, I mentioned that I had e-mailed the President and Chair of Council. I should make it clear that, after chasing them, I have had a reply, from the latter. However, I am not permitted to tell you what it says.
Update, 2 August 2013: there is now a statement in Update and on the website. Detailed analysis will follow in a post this weekend, but there's no satisfactory explanation for the six month delay, and no detail of the proposals. Apparently there will be 'sharing of key elements of change', whatever that means, in October.