While it was said that WD's are getting the most attention out of 1.04, I feel like this was given the least attention in terms of this post. But with that said, we haven't even seen the patch notes. Hoping for tons of information there!
One of the bigger things I hope for, more than the adjusting the class in terms of damage/mana regen/etc, is tooltip cooldowns showing the correct cooldown according to runs/passives, and Fetish army rune/passive for reducing the cooldown working properly. Last I checked, having the rune decreased the CD, but then having the passive (which reduces the CD for it, hex, and Big Bad Voodoo) increased the CD.