Harvest Moon: Tree of Tranquility already features some wild and exotic animals not usually found in the adorable farming series, like friendly ostriches. The newly-announced sequel seems to be going even further down that wacky path. For one thing, it's called Bokujou Monogatari: Waku Waku Animal March (Harvest Moon: Exciting Animal March). For another, animals like a lion, a giraffe, a hippopotamus, and a zebra can be seen in the art found on the new game's website.
Other than the new animals and a new, older-looking pair of player characters, Waku Waku Animal March looks strikingly similar to Tree of Tranquility. Check out the screens at Famitsu and more at Dengeki. It will be interesting to see if Natsume picks this up for localization or if the new Marvelous USA takes care of it themselves (through XSEED).