TVLine reports that both streaming/DVD rental service Netflix and satellite provider DirecTV have approached Fox TV Studios about picking up a third season of the show, one that would presumably kick off a new longform mystery for Linden and Holder to take on. While nothing's decided yet, fans of "The Killing" (and I know you're out there) have reason to hope for a second life for the show.
Netflix, of course, is currently shooting a new season of "Arrested Development," a series the company revived six years after it was canceled by Fox. They've also looked at, though didn't commit to, additional seasos of defunct ABC found footage series "The River" and Fox's pricey "Terra Nova."
DirecTV's currently in the midst of airing the final season of "Damages," which they picked up from FX for two more seasons after the FX canceled the drama at the end of its third iteration. DirecTV also stepped in to co-produce "Friday Night Lights" with NBC when the broadcast network would have cut the show due to low ratings after its second season -- the satellite service aired the new episodes first, with NBC rebroadcasting them a few months later.
So no show is ever completely dead! Keep that hope alive, "Firefly" fans.