I think You should be able to domesticate animals. The way you would do this is that each animal would have different things they like, for example, maybe chickens would like bread, so if you give a chicken bread, they will be domesticated. And you should make a leash to bring the animals around. This would give players a chance to actually have a farm. And cows should give milk.
2- Fighting against the environment.
I think you should make more thinks to worry about, for example, Hunger. Food is actually pretty useless right now, if you ever really get into a situation to use it you end up dying anyway. I think that you should give food a bigger purpose. Maybe for each day you don't eat you lose 2 hearts. And you should also make things like apple trees, to help players stay full in the beginning of the game. And once weather comes out, you should make freezing a problem. You should be able to make coats out of leather and sheep wool that would protect you from the cold, and you would slowly lose health outside in the cold without a coat.
I think once you make furniture, you should make sleeping. For example, sleeping would make the night go by twice as fast,and also, it would heal one or two hearts by resting after being injured. And if you go a day or two without sleep, your move slower and actions would become harder.
I know your problebly getting a boatload of these, but i guess ill trow it in there. I think you should make trees and rocks have physics. Because you have to admit, it looks pretty ugly seeing a million flying bushes in mid-air. And once, i just saw a random rock floating in mid air, without me doing anything to it.
I hope you listen to my suggestions, it would be pretty cool to add those things, but even without, its still an amazing game. Keep up the good wwork