Perhaps this will be the platform where I can unleash my epic tale that may or may not involve a dragon.
I know that feeling.

I was an NWN early adopter and had a 42 area persistent world. That was a fun "dungeon" but it wasn't quite a storytelling vehicle.
edit There were supposed to be words here.
Persistent worlds were a lot of fun in the early NWN1 days, there were a lot of talented people who essentially modded the game into a functional DM tool that was very powerful if you used the right mods.
Lots of opportunity to draw some inspiration.