I'm playing Entropia, and one thing I would love to see was missions. Not any bigtime "save the universe" storyline quests or anything. Just some small-time missions like finding a lost item for a npc or kill a specific monster or something and then recieve a little money.
Or maybe a real-person hiring system where you could also get missions from real persons (although that kinda already is in the game). I think things like that would make the game much better but what do you think?