I like this it's getting interesting...
Quick someone post another MvP that wasn't metioned XD
Most MVP's don't really have a storyline. There are few though, like in Einbroch there's a slight storyline for ungoliant, however I've never heard anything about RSX. Nothing for Samurai, Tanee, Tao,or most of the MVP's for that matter. Gravity seemed to have started to think about the storyline only around episode 10. Most quest arcs got started at around 10.1-10.4 and finished on 11.3. Prior to that there really wasn't much of a sotry except "This village was peaceful until people heard strange nooices from the cave. It seems that monsters have invaded the caves and there's a big boss at the bottom who controls them"
As for implementing all the quests. That's the hard part, some quest require special things and script commands that GM's either don't know or cna't do with current zone server. Also there's the fact that you have to code up
every single thing. Every line of dialog, every event, every mosnter spawn, etc etc. And it jsut takes huge amounts of time.