Jericho's audience has grown in the five years since cancellation. It was this growth that got Netflix's attention. Netflix approached CBS about making new episodes.
Currently, CBS and Netflix are in talks about bringing the series back. Fans are encouraged to write or e-mail: Mr. Ted Sarandos, Chief Content Officer, Netflix, 100 Winchester Circle, Los Gatos, CA 95032, TSarandos@Netflix.com.
In the meantime, the Jericho story continues in the Season 3 and 4 graphic novels. The Season 3 novel is back in print: http://tinyurl.com/JerichoS3Novel
the Season 4 novel will be released in November and can be pre-ordered: http://tinyurl.com/S4Jericho