well someone had to start one
1) Kill Missions
the 'bring me an item' doesnt cut it. lets say you are requested to go kill an evil boss and return with its skill/little toe/whatever. Using the item quest when the mob dies a chest can spawn, with loot inside. 's not good.
2) having dialog option to talk to player not just other npc's. this happens in live game.
3) smart tags for dialog, so they can talk to <player_name>, see <team_size>, know <player_sex> and <player_race>
4) ability for mobs/npc's to approach/home in on player
5) ability for mobs/npc's to /follow
6) scenario's to kick off when a certain number of players have entered and block more from coming with full message or similar