I think it'd be cool (even though I'm no stealth player) to be able to hire bands of thieves, who you can travel with and raid caravans, break into stores with much planning, and rob the roads of Skyrim. If Bethesda could really make this system work, and really work on the whole "planning of a heist" aspect, I think stealth players will really stand out from the other classes.
Tell me what you think or if you have any ideas.