I'd love to see space fairies. And by that I mean a race of bargain dealing, Goblin Market, legalists who are frighteningly powerful and will sell you "your first love" for "the color blue". Or "A really good idea" for "Your soul". Players should be able to get amazing stuff, but sometimes for scary prices or just outright bizarre stuff. The number of quests you could get out these guys alone would be staggering.