More factions, less religion.
ArenaNET has a primer online for the upcoming Guild Wars: Factions preview event.
"Join us the weekend of March 24th for the FactionsTM Preview Event! This will be your first chance to visit the breathtaking continent of Cantha, the newest world of the Guild Wars saga. During the event, you will get the chance to play roleplaying and player-versus-player characters, and to pursue a variety of gameplay options, including story missions, competitive missions, and a new form of PvP called alliance battles!"