New talent:
Kindred Spirits (Tier 10): Increases your pet's damage by 4/8/12/16/20% and you and your pet's movement speed by 2/4/6/8/10% while your pet is active.
Marksmanhip
Rapid Recuperation has been changed from 3 to 2 points. Now Reduces the mana and focus cost of all shots and abilities by you and your pet by 30/60% (Old - 20/40/60%) while under the effect of Rapid Fire, and you gain 2% of your mana every 2 sec for 6 sec when you gain Rapid Killing.
Upcoming hunter changes (Not in this build) (Source)
Aimed Shot: This shot will now be instant cast, its damage/effect/cooldown will remain unchanged.
Scatter shot: This will now be an 11-point Survival talent.
Readiness: This will now be the 21-point Marksmanship talent.
Trap Mastery: This will now be the 41-point Survival talent. Granted, not very sexy for a 41-pointer but we'll do some changes there in a future patch (after WOLK ships).
Skills
Marksmanship
Kill Shot required level changed from 71 to 75 for Rank 1, to 80 for Rank 2
Scorpid Sting now reduces the chance to hit with melee and ranged attacks by 3%. (Down from 5%)
Survival
Explosive shot damage has been reduced. (eg. [20% of RAP + 273] and [5% of RAP + 68] AOE damage to [8% of RAP + 238] + [2% of RAP + 59] AOE damage for Rank 4)
Freezing Arrow now creates a trap that has a chance to break on damage. (Old - 100% chance to break on damage)
Talents
Survival
Lock and Load now give you a 100% chance when you trap a target and a 100% chance when you deal periodic damage with your Serpent Sting to cause your next 2 Arcane Shot or Explosive Shot to trigget no cooldown, cost no mana, and consume no ammo. (Old - Didn't have 100% chance, affected all stings)
T.N.T. doesn't increase the critical strike chance of Explosive Trap anymore
Improved Tracking now only increases all non-periodic damage. (Old - All damage)
Beast Mastery
Separation Anxiety has been removed.