A 26-member advisory panel was appointed by the UN Secretary-General on July 31st, 2012.
See the
press release (pdf) for the composition and the Terms of Reference for the High-Level Panel.
Shorter biographies and the terms of reference are provided in html
here. Follow
#post2015HLP on twitter.
The HLP is due to report its results by the end of May 2013, before a response from UN Sec-Gen Ban in July 2013.