Since this is a as in development stage as IMBD page for Jericho has posted there is not much to report but yes it is coming and I am so glad to hear that. I was one of those fans that kept writing in when they were going to cancel the show and like many grumbled at series finally because it seemed a little rushed together. Jericho may have not been one of those wow you with the effects sci fi but it had a great post apocalyptic story plot of a town that survived a devastating Nuclear assault on the US ( Done by some factions in the US )and the story how they rallied to survive and eventually bring to light the injustice of the leadership that caused the holocaust. You can watch full episodes of the series on CBS.coms Jericho Video Season 1 and 2.

The news that I can find on Jericho comes from a couple of sources

1. Scifimoviepage.com

JERICHO (2010) - PREVIEW

THEY SAY

Jericho is a drama about what happens when a nuclear mushroom cloud suddenly appears on the horizon, plunging the residents of a small, peaceful Kansas town into chaos, leaving them completely isolated and wondering if they're the only Americans left alive. But in this time of crisis, as sensible people become paranoid, personal agendas take over and well-kept secrets threaten to be revealed, some people will find an inner strength they never knew they had and the most unlikely heroes will emerge.

2. Movieweb.com

Jon Turteltaub Plans to Bring Jericho to the Big Screen

Jericho is the TV show that won't die. It originally premiered on CBS in 2006 only to get cancelled after a handful of episodes. After the fans campaigned to have it brought back by sending the network truckloads of nuts, Jericho was given another half season. And now, episodes are being reaired on the CW, where it garners bigger ratings than critically acclaimed shows like Mad Men. According to an interview in If Magazine, producer John Turteltaub is planning to bring the series back as a big screen feature film sometime later this year.

And 3. Wild about movies

"Jericho: The Movie"

Director John Turteltaub is bringing the series "Jericho" back as a big screen feature film. You'll remember John Turtletaub not only as the producer (and a director) of the TV show "Jericho" as the force behind the movie box office smashes "National Treasure" and "National Treasure 2."

John Turteltaub stated, "It's fun to see the show won't die. We're developing a feature for 'Jericho.' It would not require you to have seen the TV show, but it gets into life after an event like this on a national scale. It would be the bigger, full on American version of what's going on beyond the town in 'Jericho."

This last boldly stating that the whole cast is back for this one. I do not see why not and I hope so . They had a great chemistry together but none of the other sources has stated who will be staring in it.