Hello,
I asked the same question below in this sub-forum.
http://www.pprune.org/medical-health...-response.html
According to the CAA, May 2010 and also on EASA's website it says May 2010.
However,
http://www.easa.europa.eu/ws_prod/r/...202008-17c.pdf
The NPA Part-Medical received 2,376 comments from more than 450 commentators, including professional organisations, national aviation authorities, private companies and individuals. Work is ongoing on the Comment Response Document for Part-Medical, and it will be published in the near future.
(May 2010) - However I have not seen this about at all, rather annoyingly.
Regards,