Shades of the Griffins! Fox performed a similar resurrection on Family Guy in 2004, which they had killed off before its time. I always felt that Futurama was more deserving of a return and was a show that had been shuffled around, preempted and never allowed to find its audience.
Seems like the execs at Fox aren't above making complete u-turns on their programming decisions, so it really makes me wonder about Arrested Development. It has a cult following, is selling well on DVD and critics love it. Naturally, it is slated for cancellation. Perhaps it is a strange marketing plan to sell more DVDs and get tons of free ink, before bringing the show back.
I've never understood Fox. They program such trash, but they have also launched (and cancelled) more cutting edge comedies then most of the other networks combined -- Action and Andy Richter Controls the Universe, but to name two. Maybe they should put the people who develop the shows into the scheduling department.
Anyway, if Futurama can come back after a couple of years off the air, perhaps there is a chance for Arrested as well. Save Our Bluths!