I'm sure this has been raised before, but what about pets? Sure, you can hatch butterflies, pigs, and chickens, but what about dogs, cats, etc? It would be interesting if players could have pets that followed them around. I imagine they could be bought from kennel-type places (as well as their food). It would probably be better if pets could die permanently, as well as making them expensive... so the game doesn't get clogged up too much by thousands of annoying dogs following everybody around... In fact. they probably shouldn't have any other purpose than being aesthetic, and their cost and food costs should be very high, so that excessive pets aren't a problem.
There could be more expensive pets, limited edition (EASTER BUNNIES?!) pets, and members-only pets as well, so they could be used as status symbols.
Speaking of status symbols, there badly needs to be facial gear. Like glasses and scarves and make-up and monocles. Especially monocles.