Last year at the Joint Leadership Summit (JLS) (in San Jose, California from July 29-31, 2011) we've discussed about our project’s leadership structure (see this blog post: Proposed Leadership structure changes & request for community feedback).
A proposal for a new Joomla project structure was made by Alan Langford, Javier Gomez, Jeremy Wilken, Peter Martin and Christine Graf and is available at Google Docs.
An Infographic of this proposed project structure was made by Themepartner.