It seems the 5.4 PTR is imminent ans both Wowhead and MMOChamp have gathered up a ton of preliminary info on the first version of the new patch. For the full lists of all the datamined changes check out Wowhead and/or MMO Champion. First off there's this supposedly hulked out Garrosh model:
And then there's the first iteration of the tier 16 set bonuses:
- Item - Death Knight T16 Blood 2P Bonus (New) Every 4 Heart Strikes, Rune Strikes, or Blood Boils will add one charge to your next Bone Shield.
- Item - Death Knight T16 Blood 4P Bonus (New) Dancing Rune Weapon will reactivate all Frost and Unholy runes as Death Runes, and make your next 4 Death Strikes free.
- Item - Death Knight T16 DPS 2P Bonus (New) Killing Machine and Sudden Doom grant 500 Haste or Mastery, whichever is highest, for [ 200% of hnd + 4 ] sec, stacking up to 10 times.
- Item - Death Knight T16 DPS 4P Bonus (New) Death Coil increases the duration of Dark Transformation by 1.5 sec per cast. Pillar of Frost increases rune regeneration speed by 100% while active.
- Item - Druid T16 Balance 2P Bonus (New) Arcane spells cast while in Lunar Eclipse will shoot a single Starfall bolt at the target. Nature spells cast while in a Solar Eclipse will shoot a single Sun bolt at the target.
- Item - Druid T16 Balance 4P Bonus (New) Every time you enter Solar or Lunar Eclipse, the cooldown of Celestial Alignment is reduced by 3 sec.
- Item - Druid T16 Feral 2P Bonus (New) Omen of Clarity increases damage of Shred, Mangle, and Ravage by 20% for 6 sec.
- Item - Druid T16 Feral 4P Bonus (New) Tiger's Fury generates 5 combo points.
- Item - Druid T16 Guardian 2P Bonus (New) When Barkskin fades, Savage Defense is automatically activated, and a 40 Rage Frenzied Regeneration is automatically cast.
- Item - Druid T16 Guardian 4P Bonus (New) Activating Frenzied Regeneration and Savage Defense will cause a heal over time on yourself for 10% of your maximum health over 8 sec.
- Item - Druid T16 Restoration 2P Bonus (New) Ironbark increases your critical chance by 20% for 12 sec.
- Item - Druid T16 Restoration 4P Bonus (New) Rejuvenation, Lifebloom, and Wild Growth critical heals have a chance to cause all cast time heals for the next 12 sec to cause a Living Seed on the target for 80% of the amount healed.
- Item - Hunter T16 2P Bonus (New) Arcane Shot and Multi-shot reduce the cooldown of Rapid Fire by 2 seconds per cast.
- Item - Hunter T16 4P Bonus (New) Explosive Shot casts have a 40% chance to increase the number of charges your next Lock and Load effect has. Instant Aimed shots reduce the cast time of your next Aimed Shot by 50%. Offensive abilities used during Bestial Wrath increase all damage dealt by 2%, stacking up to 15 times.
- Item - Mage T16 2P Bonus (New) Arcane Missiles causes your next Arcane Blast within 10 sec to cost 25% less mana, stacking up to 4 times. Consuming Brain Freeze grants 1 charge of Fingers of Frost. Consuming Pyroblast! increases your haste by 750 for 4 sec, stacking up to 5 times.
- Item - Mage T16 4P Bonus (New) Arcane Missiles has a 20% chance to not consume Arcane Missiles!. Consuming Brain Freeze has a 75% chance to drop an icy boulder on your target. Fireball and Pyroblast have a 10% chance to cause Inferno Blast to have no cooldown for 6 sec.
- Item - Monk T16 Brewmaster 2P Bonus (New) When your Black Ox statue Guards another player, you also get a Guard for 15% of that amount.
- Item - Monk T16 Brewmaster 4P Bonus (New) Purifying Brew also heals you for 30% of the amount of staggered damage cleared.
- Item - Monk T16 Mistweaver 2P Bonus (New) When Gift of the Serpent spheres heal a player, they gain an absorb for 20% of the amount healed.
- Item - Monk T16 Mistweaver 4P Bonus (New) When your Renewing Mist heals a target, you have a 20% chance to cast a Chi Wave healing bolt that will not bounce at a nearby low health friendly target.
- Item - Monk T16 Windwalker 2P Bonus (New) Combo Breaker: Tiger Palm now generates 1 Chi. Combo Breaker: Blackout Kick now generates 2 Chi.
- Item - Monk T16 Windwalker 4P Bonus (New) Every 3 stacks of Tigereye Brew consumed cause your next Rising Sun Kick, Blackout Kick, or Fists of Fury to consume 1 less Chi.
- Item - Paladin T16 Holy 4P Bonus (New) Reduces the cooldown of Divine Favor by 45 sec. While Divine Favor is active, Mastery is increased by 1,500.
- Item - Paladin T16 Protection 2P Bonus (New) Bastion of Glory now generates 1 Holy Power per stack consumed.
- Item - Paladin T16 Protection 4P Bonus (New) While Guardian of Ancient Kings is active, 100% of the damage taken is converted into a heal over time that activates when Guardian of Ancient Kings fades.
- Item - Paladin T16 Retribution 2P Bonus (New) When Art of War activates, all damage is increased by 5% for 6 sec.
- Item - Paladin T16 Retribution 4P Bonus (New) Holy Power consumers have a 25% chance to make your next Divine Storm free.
- Item - Priest T16 2P Bonus (New) Serendipity also increases the healing of your next Greater Heal or Prayer of Healing by 50% per stack. While Archangel is active, your critical chance is increased by 10%.
- Item - Priest T16 4P Bonus (New) Circle of Healing and Prayer of Mending casts increase the effect of your next Holy Word spell by 50%, stacking up to 10 times. While Spirit Shell is active, you gain 10% haste and 3,500 mastery.
- Item - Priest T16 Shadow 2P Bonus (New) Shadowy Recall effects have their critical damage bonus increased by 100%.
- Item - Priest T16 Shadow 4P Bonus (New) Each Shadow Orb consumed for Devouring Plague increases the damage of your next Mind Blast, Shadow Word: Death, or Mind Spike cast within 12 sec by 20%.
- Item - Rogue T16 2P Bonus (New) When you generate a combo point from Revealing Strike, Honor Amongst Thieves, or Seal Fate, your next combo point generating ability has its energy cost reduced by 5. Stacks up to 5 times.
- Item - Rogue T16 4P Bonus (New) Killing Spree deals 10% more damage every time it strikes a target. Abilities against a target with Vendetta on it increase your mastery by 250 for 5 sec, stacking up to 20 times. Every 4 Backstabs, your Backstab is replaced with Ambush that can be used regardless of Stealth.
- Item - Shaman T16 Elemental 2P Bonus (New) Fulmination increases all Fire and Nature damage dealt to that target from the Shaman by 4% for 2 sec per Lightning Shield charge consumed.
- Item - Shaman T16 Elemental 4P Bonus (New) Your Lightning Bolt and Chain Lightning spells have a chance to summon a Lightning Elemental to fight by your side for 20 sec.
- Item - Shaman T16 Enhancement 2P Bonus (New) For 10 sec after using Unleash Elements, your attacks have a chance to unleash a random weapon imbue.
- Item - Shaman T16 Enhancement 4P Bonus (New) When Flame Shock deals periodic damage, you have a chance to gain 5 stacks of Searing Flames and reset the cooldown of Lava Lash.
- Item - Shaman T16 Restoration 2P Bonus (New) When Earth Shield heals a target, the target will gain 100% of the amount healed as an absorb.
- Item - Shaman T16 Restoration 4P Bonus (New) Spiritwalker's Grace will also summon a spiritual version of yourself that will mimic all cast time targeted spells for 15 sec.
- Item - Warlock T16 2P Bonus (New) Conflagrate has a 20% chance to increase the critical strike chance of Immolate and Incinerate by 15%. Unstable Affliction critical hits have a 40% chance to increase all damaging effects of Malefic Grasp and Drain Soul by 30% for 10 sec. Soul Fire has a 20% chance to increase you and your pet's damage dealt by 20%.
- Item - Warlock T16 4P Bonus (New) When a Burning Ember fills up, your critical strike chance is increased by 15% for 5 sec. Haunt has a 20% chance to refund its shard when expiring. Shadow Bolt and Touch of Chaos have a 20% chance to also cast Hand of Gul'dan at the target.
- Item - Warrior T16 DPS 2P Bonus (New) Attacks against a target with your Colossus Smash debuff generate 10 Rage.
- Item - Warrior T16 DPS 4P Bonus (New) Your Mortal Strike and Bloodthirst have a chance to activate Death Sentence, allowing Execute to be used above 20% target health. Below 20% target health, Death Sentence makes Execute free.
- Item - Warrior T16 Protection 2P Bonus (New) You heal for 30% of all damage blocked with a shield and 30% of all damage absorbed by Shield Barrier.
- Item - Warrior T16 Protection 4P Bonus (New) For 10 sec after Shield Wall fades, you gain Rage from taking damage.