Kyle Ledbetter (designer of the new template on Joomla.org and developer of some cool Joomla! administrator templates) published news on his plans for Joomla! 3.0 in JUX in 2012. Focus will be on usability improvements to the Joomla! administrator and development of a Joomla! UI Library for extension developers.
If you believe the Joomla! administrator can be improved, now is the time to speak! Fill in the Joomla! 3.0 Usability Feedback form today and join the discussion on the below links.
Discussion about Joomla! 3.0 workflow and administror template
Discussion about Joomla! 3.0 site template and sample data
Discussion about Joomla! 3.0 mobile user experience
Below is a concept of what the administrator might look like in Joomla! 3.0: