I cannot give you a direct reference; some of those points are already in the public domain (see
http://www.caa.co.uk/docs/620/e-Sept2011_v3.pdf ) and others were made in a private e-mail from a senior CAA licensing member.
AOPA intends to press for greater clarification early next year; however, you may rest assured that the CAA firmly intends to protect the future continuance of the IMCR beyond mere 'grandfathering'.
The CAA's response to NPA 2011-16 may be viewed at
http://www.caa.co.uk/docs/620/201112...PA201116V3.pdf ; see Item #427.