I just purchased this game last night and have been addicted since. I absolutely love this game and all of its potential!
As a dorky equestrian and avid gamer, I would love to see something similar to what was done in Minecraft-- the ability to 'tame' wild animals, such as wolves, big cats, horses, rabbits, etc. I think it would be a very fun little addition to the game if the user was able to play it almost like a farming/life simulator, haha.
For wolves/dogs, they could 'patrol' the perimeter of your village or house and attack strangers in survival mode, or just walk around if you're in creative. You could also have the option to give them little things (like meat) to encourage them to stay with you. This would be the same for any animal, really, just find something it likes, use the interaction key to give the item to the critter, then after a certain time it would become yours.
It would also be super cool to be able to ride horses, herd cattle/sheep, and harvest things from your pets like milk or eggs.
It would also be cool if you could make a 'crafting table' that would be specifically for farm goods/produce.
A butter churner, obviously to make butter. Or just one big item that would allow you to drag items into slots, then with the right combination, it would craft the produce that it typically would make IRL, such as yogurt, cheese, or steak, or something. And you could gift those items to fellow players in the game.
Just some dorky suggestions.