Doubt the devs are going to make any meaningful changes but here are the things I would like to see:
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A rune with no level restrictions that adds Repair Durability mod - so many cool items collect dust due to being ethereal.
A rune that adds 20fcr - would open up alot of helm/shield options.
A cosmetic hide helm option - some of the helms look so awful to use (shako).
For people who use tokens to reroll characters frequently - a template system that lets you save stats/skills so you do not need to manually input every time.
Melee needs a rework - scale attack rating tables higher, add more aoe capability.
Open up runeword bases - (beast in a sword, infinity in sword/bow etc) will allow for more diversity.
Give the other mercs auras too - act 2 being the only available aura is lame.
Echoing Strike needs balancing - require attack rating, use weapon durability, reduce damage.
Bind Demon needs balancing - a free aura (conviction/might/fana/holy freeze) on top of granting a tank with a target teleport skill...... busted.
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What are you guys hoping for?