i would really, really love to see moths implemented into the games ;w; i saw a few concept sketches on tumblr once and they were precious! i would also like to see a squid villager, we already have octopi, so why not squids?
There needs to be a plesiosaur NPC.
Moar pandas!
Alpacas seems like a nice idea, too. And I just love the bats designs that were posted few pages ago.
Giant, overbearing, gentle giants. Encounter them in the seas or 'lakes' on random days. You can hop on their backs and they'll take you somewhere! hnnnnng @_@