If i've followed your post correctly, your speaking of implementing a system where it's possible to fine tune your character a bit more. I'm all for this, whether it is directly upgrading weapons and armor (heck , we could used rare drops to put in slots in weapons), or if another alternative is provided.

To me, player skill ability aside, the character build customisation is very bland in this game. Generally, get to 50, put all points in classes main stat, grab the gear you can from raids and dungeons, be the same as everyone else.

More options would be nice. (high level crafters able to make augments for weapons etc would be bad ass. )