Atlus announced their version of Demon’s Souls will have a few differences other than pre-order spoils. Their localization team is polishing the menu text and building untarnished servers.
While Demon’s Souls has an online component, it’s mostly passive. In Demon’s Souls you can examine bloodstains to view the last seconds of another player’s life, from another game far far away. One of the core concepts of Demon’s Souls is players can learn from each others deaths.
Adventurers can also write and rate messages for each other. These can be helpful hints or, if you’re a griefer, booby trap tips. Instead of being filled with bloodstains and messages the North American servers will be a clean slate. Unfortunately, this also means anyone that imported the game won’t be able to play with people that own Atlus’ version of Demon’s Souls.