I also imagine that you cant reforge an Intellect (caster) leather/mail/plate piece and put agility/strenth on it. Because then melee will roll on caster gear, and vice versa saying that they will just reforge it for them.
Then people would just be rolling based on iLvl and not even care about what its meant for.
I wonder if there will be a penalty for reforging (like 90 crit rating doesnt turn into 90 Haste, it turns into like 70 or 80