Blizzard napisał:

We are planning a lot of exciting content for patch 3.1.0, and we are doing a three-part preview series on upcoming class changes. This is the first in the series: Priests, Rogues, and Shaman. Please keep in mind, that this list is not at all comprehensive, and subject to change.

PRIEST
# Divine Spirit – this spell is now a core ability available to all priests.
# Discipline has access to a new talent, Power Word: Barrier. (Think of it as Power Word: Shield for your whole group).
# Several area of effect (AOE) heal spells have been improved: Prayer of Healing can be cast on any groups in your raid party. Holy Nova’s mana cost has been reduced. Circle of Healing now heals for more.
# Shadow priest PvP survivability has been improved: Shadow Form now reduces magic as well as physical damage. Dispersion now removes snares.
# Penance – this spell can now be targeted on the priest.
# Serendipity – this talent now reduces the cast time of Greater Heal and Prayer of Healing when Binding Heal or Flash Heal are cast.
# We are also working to give Holy additional PvP utility.

ROGUE
# Hunger for Blood – instead of a self-buff, this ability can only be used when there is a bleed effect on the target. However, it has no stacks and grants a 15% damage bonus.
# Adrenaline Rush – the cooldown on this ability has been lowered.
# Lightning Reflexes – reduced to 3 ranks. In addition to 2/4/6% dodge, this talent now also grants 4/7/10% passive melee haste.
# Killing Spree – while this ability is active, the rogue does 20% additional damage.
# Savage Combat – now causes 2/4% physical damage done.
# Mace Specialization – this talent now grants haste in addition to armor penetration.

SHAMAN
# Chain Lightning – now jumps to 4 targets but does less damage. We wanted to make the distinction between Lightning Bolt and Chain Lightning more clear.
# Storm, Earth and Fire – this talent now increases all damage done by Flame Shock, not just periodic damage.
# Spirit Weapons – now reduces all threat, not just melee threat.
# Unleashed Rage – reduced to 2 ranks, now also increases your critical strike chance with melee attacks by 1/2%.
# Totem streamlining: The Mana Spring and Healing Stream Totems have been combined. The Disease Cleansing and Poison Cleansing Totems have been combined.
# We are also working on giving Enhancement and Elemental more PvP utility.

COMING SOON
Warlock
Druid
Hunter
Death Knight
Mage
Paladin
Warrior