Some additions to Pynedor's great fantasy ideas:
A good run-down shack would also be a nice piece for either knights or for a fantasy/magic set. I have tried to cobble these together from the hillbilly shack, from the nativity manger, from the petting zoo, but nothing looks quite right. Either an uncut-stone house, a rough plank house, or a log house; with thatch roof; would add some diversity to the steck walled buildings in existence.
Rhalius, I like the Wizards Special+ idea. Don't forget to include a BAT in one!! We are WAY overdue....
PM has used the child body for a lot of fantasy creatures: Dwarf, gnome, goblin, Christmas elf. IMHO they managed to make these distinct (enough.)
Similarly, I would like to see an oversized body template that could be re-used as an ogre, troll, (small) giant, Frankenstein's monster, etc. Even 1/2 a head taller than a standard clicky would do. Maybe a whole head taller....
doug