Right now theres a poll going on in the intox forums with a vote on if Chretien should be added into the rotation of JB1.
Obviously even if the vote comes out as yes, and intox actually agrees to it, they still need to wait for their programmer to return and fix all the bugs before any map adding happens.
However right now we have a chance to make it clear to people that we want it to come back when the time comes. If you still believe we can bring back what made JB2 awesome go ahead and vote yes!

http://intoxgaming.com/forum/showthread.php?tid=38108

According to smeek, this is the last day of Jailbreak 2, so get your asses on before I smash ye head in with me hammer ye dumb qunt m8

I wanna revive Jb2 for a day. At least. I'm inviting a lot of people to join so we can play Jailbreak without having to go to Jb1.

Not to be confused with "The Sacred Keepers of The Secter" which is just the same as this group with a dumb typo in the name (which is litteraly the only thing you can't change after making a group!)