As mentioned in another thread, adding a Sorcery item, Home Stone, that Thralls can be bound to when not following for fighters and archers letting them path around a certain radius say 50 meters, if the follower stops following outside of the 50 meters they’ll path back to the Home Stone including swim across rivers.
The Improved Home Stone maybe unlocked at Max Level Sorcery could act like an Obelisk letting the player use a Map Room to return to the Improved Home Stone. This item would also be a unique item in the world. If you create a second the first is destroyed, it also retains the home stone properties for Thralls and Pet;s.