I determined for my game that largely organized religions vanished by the time the Fall hit. Well, perhaps the Jovies still have a clergy of some level, but pretty much everywhere else, it's gone. Sure there are still believers, but the most fundamentalist minded group were wiped because of their refusal to be backed up and/or resleeved. Those beliefs that resisted did because they were reformed at one point or another. AFIMC, Catholics are gone, plain and simple. Mormons became an hypercorp among thousands of other (albeit quite aggressive in their memetic strategies -seen Babylon AD?) And Islam being the new Judaism, Muslims seeing themselves as punish for their violent ways, the many paying for the sins of a few, some say. They claim God gave them a new mission: find a new Mecca and only when they do, they'll be forgiven. That's a reason why the Reformed Islam meme is strong among the Barsoomians, and Gatecrashers Xenodeism would be seen both as a tool AND a threat by Pathfinder. Who knows what kind of beliefs these new faiths can bring forth. Red Faction's Jonathan Hale and Dead Space's Reverend Altman (and the Unitology Church) give good exemple of what can be done with Xenodeism