Priest All Specs : 

     New : Master : Smite : 
     Smite will now increase your holy damage by 5%, cumulable 5 times.

Priest Shadow : 

     New : Power Of Shadows : 
     Whenever you inflict damage with your spells, you have 5% chance to increase the casting speed of your spells by 15% and their damage by 5% for 12 seconds. Stacking up 2 times.

     New : Mental Acceleration : 
     Your damaging spell has a chance to make your next mind blast instant, not consuming the cooldown and increase mind blast damage by 50%.

     New : Terrifying Mind sear : 
     Mind sear will bounce on more target and applies a shadow debuff that deal damage every 1.5sec during 12sec to each target it bounces on.

     New : Master of Shadow : 
     Reduce mana cost of your Mind blast, mind control-flay-sear, devouring plague, shadow word pain and death, and vampiric touch by 50%

     New : Master : Mind Blast : 
     Mind blast will now cost 0 mana and will recover some mana.

     Dot : 
     Increase all dot damage by 15%

     New Torment Bolt : 
     Sends a bolt of dark magic at an enemy, inflicting 3885 to 4515 Shadow damage and 500 damage every second for 5 seconds. ( 15seconds cooldown ).

     Vampiric Embrace : 
     old: Fills you with the embrace of Shadow energy, causing you to be healed for 15% and other party members to be healed for 3% of any single-target Shadow spell damage you deal for 30 min.
     new: Fills you with the embrace of Shadow energy, causing you to be healed for 20% and other party members to be healed for 5% of any single-target Shadow spell damage you deal for 30 min.

     Shadow Word Pain : 
     old: Increase the damage of your Shadow Word: Pain by 3/6%
     new:  Increase the damage of your Shadow Word: Pain by 10/20%

Holy priest : 

     New : Master : Circle of healing : 
     Will now in addition, heal player every seconds for 5 secs.

     Test of Faith : 
     old: Increases healing by 4/8/12% on friendly targets at or below 50% health.
     new: Increases healing by 10/20/30% on friendly targets at or below 50% health.

     New : Master : Desperate Prayer : 
     old: Instantly heals the caster for 3716 to 4384.
     new: addition : You can now use it on other targeted player.

     Healing Prayer :  
     old: Reduces the mana cost of your Prayer of Healing and Prayer of Mending spell by 10/20%.
     new: Reduces the mana cost of your Prayer of Healing and Prayer of Mending spell by 15/30%.

Disc priest :  

     New : Solar blessing : 
     You draw power from the sun to heal 1888 to 2712 to ally within 8 yards of your main target.

     Improved Mana Burn has been replaced by Reflective shield 

     Reflective Shield has been replaced by Solar Blessing

     Enlightenment : 
     old: Increases your total Spirit by 2/4/6% and increases your spell haste by 2/4/6%.
     new: Increases your total Spirit by 4/8/12% and increases your spell haste by 4/8/12%.

     Power Infusion : 
     old: Infuses the target with power, increasing spell casting speed by 20% and reducing the mana cost of all spells by 20%. Lasts 15 sec.
     new: Infuses the target with power, increasing spell casting speed by 20% and reducing the mana cost of all spells by 50%. Lasts 15 sec.