With the current state of how dull the items are, when its finally driven into the D3s team thick skull just how bad it is. I think for the 2 expansions planned to avoid people walking away the mystic will come in the 1st, should of been added to the current game. He was supposed to add enchants to weps and armor which would solve alot of the issues people are having atm. And To ensure D3 lives on for a good few years after the 2nd expansion is out I think blizz will bring back runewords.
As for what we currently have, beyond PvP being added and a slight buff to Lgendaries, I dont see anything in the way of what we really want and need.