In my Mind, it would be a way more interesting to see the animals  more active, even when the player is not near.
Some examples:
        - Wolfs hunting other animals. Hares, Deers and so on.
        - All Animals could walk around, maybe even in some intervalls to some Waterplace, like the Sea
 ( maybe in futur a River  ).
  ).
        - Wolfs shouldn be  so weaker 
( not less damage but less health) and in slightly bigger  herds 
( Not quite sure if this is the right term ).
        - Realistic Speed. No chance someone can outran a Deer or anything else.
        - Maybe the chance of  a herd of wolfs finding a barn, and killing some/most of the animals inside. 
Would be totaly awesome.
Additional the hunting is way to easy as soon you have  a bow.
        - The pathfinding is to fast, allways you got a Traget you can track down quite fast. It would be nice to see just tracks in a radius of
          lets say... 20m?
        - Some Tracks on rocky, hard ground could not be visible, forcing the player to scan the entire area.    
Excuse my bad English, it's  6 am.