I assume they want the players storys to be at the forefront. I'm thinking what would be amazing is a dynamic book or news system, like the devs can edit texts strewn about to mention actions players did. Then new editions release, and these old texts aren't generated anymore. It would probably have technical limitations but players creating and playing through stories in a sandboxy world is infinitely more interesting than "big dragon is going to kill everyone we need heros"
It would be awesome if in the town hall could be books of players who partecipate an world event. "# player and the breaking of the mountain", or guilds with " The siege of #name Castle".