Suggestion: Ideas for revealing rares in maps

Here are some ideas for revealing rares in maps instead of the current 'reveal all rares when there are less than 200 mobs'. Any one of these alone could be a nice improvement:

-Reveal the closest rare to the player at all times

-Reveal all the remaining rares when the boss (or the rare in the boss room) is killed

-Reveal all the remaining rares when half of the rares are killed

-Always reveal all rares (even knowing where they are, we still have to path to them)