One of the things I found cool about adventuring around in MMO's was finding those random treasure chests just sitting there waiting to be opened.

World of Warcraft has this. Most of the time it's just a potion that restores hp or mp with a few random items inside too, crafting materials or something...but it adds a lot of flavor to adventuring around in areas you have already explored, since it adds randomness to the game and more sense of adventure.

In the future, could we get something like this? The drops don't have to be gear, obviously. Simple materials and/or potions would do just fine...even Ventures!