It would be interesting to see more foliage such as grass and maybe some more interactable plants in the wilderness.
The implementation of bandits into the wilderness and maybe camps would be a nice addition to see. I've played around 38 hours of this game and I believe this game is one of those hidden gems within itch.
Animals such as bears and wolves would give a great sense of immersion and allow there to be something to fight in the wilderness, besides bats.