From the official Fox Arrested Development Site:
Dear Arrested Development Fans:
Thank you for your e-mail and your passionate support of Arrested Development. While the show has finished production for its second season, contrary to the rumors you may have heard or read on the internet, it is NOT cancelled.
We at FOX love Arrested Development and we look forward to having the Bluth family back on FOX in the future – hopefully for many years. You can help make the show a bigger success by getting as many people as possible to start watching the show this Sunday and every Sunday at 8:30 p.m. ET/PT.
Fox Broadcasting Company
So that’s very good news. But I think the season is still shortened. Jason Bateman is on Conan tonight, and hosting SNL this weekend, so I’m hoping for a comment during one of those.