New World crops have been avoided by the devs so no potatoes, corn, etc.
Sheep have already been suggested. New patch currently in playtesting will bring horses, chickens and goats to the game.
We already have a temple.
Water based play won’t happen before full release of the game. Crate may take a look at it again down the line, but it’s not easy the way they set things up.
For the initial release I carefully kept all the crops to old-world crops so that people could imagine the game as being more medieval time-period if they wanted but planned to add new-world crops, maybe as DLC later