Just an update: I've started seriously planning JtN II now, and while I don't have too much to share, I will inform you of two things:
1. There will be 12 players, divided into 3 "clans", including the 4 survivors of JtN I as one clan.
2. Some/Most/All players will receive pieces of intel, information which only there character might know, but are physical objects (like letters) that can be traded around for proof.
So, I'd like some feedback on these ideas, and what you all would like to see in JtN II.