As self-respecting Ranger, I wanna track something.
Couldn't we have it where monsters leave a kind of 'ultra-violet' trail as they walk their patterns that only Rangers can see when using their tracking ability? Kind of like how mammals leave ultra-violet tracks that hawks and other birds of prey can see? At least that would be something.
Then, in later quests and wilderness areas, far-ranging monsters or bosses that were trying to avoid being followed could be incoporated.