The Simpsons season 9 will be released on December 19th. Fox has confirmed the date. The 4 disc set will include all 25 episodes from season 9, along with a ton of bonus material. For a complete listing of all the epsiodes go to www.TVSHOWSONDVD.com
or http://tvshowsondvd.com/newsitem.cfm?NewsID=6455

thanks for the update