Well we know idle animations to already be in the game for humans, with more likely planned…
For mobs? I’m not sure. I’m still a bit unclear on how we will see mobs, as it is a city builder so is your fog of war only going to really reveal your city and its surroundings? And therefore mobs would unlikely actually be visible to you when they aren’t attacking your city. If we could see further away…maybe. If we could see goblin encampments or something then definitely.
Animals I believe will also have idle animations. As it is, the bunnies already have one.