Can we add Goats to Tartosa and Sheep to Moonwood Mills?

I suspect that goats and sheep are tied to that hay flooring item thingy (you can see it inside the barn in one of the leaked screenshots). Just like how chickens are tied to the chicken coop and rabbits are tied to the stump. You can freely place down those items on any lot in any world and the little animals can then roam freely wherever, unless you close off the area with a fence.