According to Zap2it.com Korbi Ghosh's information, Supernatural is expected to have a full panel in this year's San Diego Comic Con.
The 2009 San Diego Comic Con will take place July 22-26 at San Diego Convention Center, 111 W. Harbor Drive, San Diego, California, USA.
Please note that no offical word has been given. The complete Programming schedule will be posted on the Comic Con site about ten days to two weeks prior to the show.
Source: Zap2it.com, 2009 San Diego Comic Con.