I agree with more crafting options. I'd like to see a larger, more interesting economy. It would lead to formations of actual guilds lending themselves to helping that economy (i.e. Miner's Guilds, Blacksmith's Guilds, Refiner's Guilds, etc.), and with many of the guilds I've seen, they're either: groups of friends, based on combat/protection, or general all around economy stuff, not much focus. (Note, nothing against those guilds, I just want to be able to go on strike

)
Most of the other things can be assisted by the community. Though history and religion and such can become hotly debated, at least that then makes them interesting. Players can offer NPC phrases.
Heck, I'd like a top three. Crafting, NPCs, and Mobs.
I want someone to craft me a spear out of an ulbernaut arm claw thing.