well it's not just about Mur
we, as ourselves, need to make few story lines that others would follow. I'm not familiar with rules of dungeons and dragons, but as far as I know they have Game Masters right? so why don't certain group of people team up and create a story that would start series of events, in which other people can join in, making something grand. The 'Game Master' would set the rules at the start, how the events would function (you could use torch system for certain events within those event series, if battle occurs or whatever)
same thing about history. Players should work on that.
I was planning to create History of Loreroot for a long time, and somehow I keep delaying it, some cause of the members that should help and their duties in RL, some cause of mine, and some cause I can't manage to make people tell me right away what I want (cause they keep delaying it for later on), but anyways it will be made at one point (very soon I hope)