(posted here so as more public players can see it)
Can't the servers with different rules and geographic locations all be linked in a way? Like your character goes into a weird alternate reality portal type thing and gets sucked into a different server? That way all the servers would be linked but reality would be different in each world to the player.
One server could be normal rule set but located in NA, another PvP but located in Europe, etc
One character - many servers. Your character could only be present on one server at a time and players could move from server to server bringing goods and materials to the different worlds. Kind of like a weird stargate thing going on.
This would be a really original idea that would bring more players to the game as they can migrate there character to the world type they are most happy with.