A feature I would like to see is the hand-me-down magical weapon.
Currently in WoW or EQ or LotRO there are plenty of magical weapons that pop up as Bind on Equip. Meaning once you put the sword in you grimy hand it is yours forever after and you cannot trade it away to another player. You can of course trade it away before you equip it, but that's not where I'm going with this.
I would like to see a magical weapon such as the "Golden Scimitar", that is your typical bind on equip item. I then equip the item, and begin to use it, and it is still the "Golden Scimitar". But over time, and many levels of my characters constant usage, favoring this weapon above all others, that the legend of Aelwulfe and his "Golden Scimitar" spreads. One day, long after I first equipped it, it suddenly becomes "Aelwulfe's Golden Scimitar"! And maybe it picks up some minor random effect such as +1 to fire resistance or +1% to overland movement speed, or +1% to lockpicking skill and it is known as "Aelwulfe's Golden Scimitar of Swiftness" or something like that.
Having stuck with my "Golden Scimitar" for many levels (absolutely past its optimum usage for my level) the weapon, which would normally be just another beat up old "Golden Scimitar" ready to be sold for 43cp to a local merchant, is now a relic of legendary usage. It is now "Aelwulfe's Golden Scimitar of Swiftness", AND is has surpassed its bound status to once again be a tradeable item. I would then be able to trade it away for profit or give it away to some lower level friend to help him or her along on their way.
Maybe it binds to its next user, or becomes infinately tradeable. But what it does is it spreads the word that there is a character named Aelwulfe who once did great things with his "Golden Scimitar". It has no true impact on the world economy since it was first spawned so long ago, other than apparent value a player might attach to a certain minor effect (someone who does alot of lockpicking might put or pay more value for the effect of +1% lockpicking skill). If the game somehow limits the number of "Golden Scimitars" allowed in the world this one would still count toward that number, so it wouldn't become a balance of power issue (at least not that I can see).
Of course my character could just hang onto the sword. And one day, sitting around an encampment resting with some younger adventurers I could pull forth "Aelwulfe's Golden Scimitar of Swiftness" sure that its unique name will then start the requests that I once again retell the story of how I, Aelwulfe, once battled the spider-demon Fvit on the harsh plain of Cant with nothing but my courage and the "Golden Scimitar" that now bears my name.
That's a Role Play Feature I'd like to see.
Aelwulfe