The interview is from August of 2012 and the interviewee is a member of the official body that makes internal decisions about the GERD. "...although the political side of this dam is decided and complete, the technical decisions about the dam is ongoing, we are flexible to change if the analysis calls for it."
This interviewee explained that the International Panel of Experts for the GERD consists of representatives from Sudan, Egypt, and Ethiopia as well as outside "well-known" experts from France, Germany, Britain, and South Africa. Also stated that following the release of the report, Ethiopia would hold a conference to discuss.
Maybe this gives insight into the official processes happening now? Maybe things have changed since August?