With so many unique Items in the same going unused after a brief period of low-mid level, it would be good to see a renewed utilization of such items by providing additional enhancements to said items when utilizing the cube-upgrade; item stats could improve beyond the original stat, based on level of upgrade - normal to exceptional - exceptional to elite. This would open up more build choices and bring more fun/variety into the game.
For example,
The armor Blinkbats form
Original
+25 Defense
+50 Defense VS. Missile
10% Faster Run/Walk
40% Faster Hit Recovery
Adds 3-6 Fire Damage
Exceptional
*+150-250 Defense
*+300-500 Defense Vs Missle
*20% Faster Run/Walk
40% Faster Hit Recovery
*Adds 60-120 Fire Damage
Elite
*+450-1000 Defense
*+600-1500 D vs M
*+40-60% FRW
40% Faster Hit Recovery
*Adds 600 - 1200 fire
Example, the weapon Woestave
Original
+20-40% Enhanced Damage
50% Chance Of Open Wounds
Slows Target By 50%
Hit Blinds Target +3
-50 To Monster Defense Per Hit
Freezes Target
Prevent Monster Heal
-3 To Light Radius
Exceptional
*+20 IAS
*80-160% Enhanced Damage
50% Chance Of Open Wounds
Slows Target By 50%
Hit Blinds Target +3
-50 To Monster Defense Per Hit
Freezes Target
Prevent Monster Heal
-3 To Light Radius
Exceptional
Elite
*+1-2 Sockets
+30-40 IAS
*+240-400% Enhanced Damage
*+1000 Defense
*+Chance to Cast Decrepify on striking
50% Chance Of Open Wounds
Slows Target By 50%
Hit Blinds Target +3
*-25% Targets Defense
Freezes Target
Prevent Monster Heal
-3 To Light Radius