I'm sick of seeing the tears stream for no reason so gonna drop some personal evaluation information.
First off Dispersion:
-Yes it needs either a snare removal or health regen addition to be PvP Reliant. It's currently viable in select situations but to be truely a staple ability it needs refinement.
-For PvE it's being looked at too narrow minded. Right now due to VT changes on trash we're slacking in damage and mana regen. So every 3 min(not a long wait) you can regen 1/3 of your mana WHILE moving from mob to mob. Also on boss fights you can go all out and nearly oom, refresh VT, pop fiend, and pop disp and in 6 seconds you are full mana. That's HUGE!
-Yes we're being nudged a little bit towards crit. But we don't have to dive into it like it's the next best thing. Haste and hit still > crit for us. We get 4% from our own talents. In a raid we'll get the mage's crit debuff and possibly 3% from the retadin debuff. Moral of the story crit will be getting stacked around the board FOR us. So slip in some here and there but keep focus on your spell damage and haste.
-From what I'm seeing from EJ 17% hit is needed. The QQ about the changes to misery aside that 3% hit will be huge for us and our raid. We only need 11% hit to cap with that and our spec. And giving our raid 3% hit is almost guaranteeing a raid slot.
-Spell power changes mean unlike the other mana batteries (ret/surv huntard) we can shift and offheal with good "+healing" instantly. AND we can do it while maintaining VT on the target to keep the regen running. The changes to VT allow us to slip into a situational offheal role easily without nerfing our regen ability so thank the Devs for opening another raid slot for us. (before was owned by elesham/moonkin)
-We're not cookie cutter people. So it's never going to be easy for us. I wish they would give us hex/shadowguard across the board to help against powerful melee but that isn't likely. SP PvP will still take a lot of talent, positioning, and awareness to be successful.
-Get better with the talents you have and stop QQ for other things. If you suck with what you have something new isn't gonna help, you're just gonna suck with that ability too.
Please only worthwhile non-childish responses for promotion of intelligent thought on these matters.