Horses could be passive tame. They are really derpy, getting stuck on terrain or launching themselves. Their acceleration from 0 to 100000 is insane, making them hard to trap and bola. Not counting the fact they run into open ocean and swim in circles for hours.
An ability to see your animals on map/atlas would be great. As it is alpha game build bugs happen, stuff happens, its too easy to lose your animals. This feature can be taken out for full game release, but it would make a nice feature for now.
Armored saddles to buff your animal, give it more survival ability?
Breeding is so so so tedious. Do you really want us to spend hours upon hours handfeeding babies surrounded by 7 grills or penguins to make sure the temp is good?
High level tames should be hard to get, but maaaan I am not looking forward to breeding at all.
Elephants could have more stamina.
There should be an animal that gathers thatch faster than a player with a pickaxe.
