New Game Mechanics/Modes/Areas:

• New snowy ruins zone called The Ruins of Sesheron, old Barbarian capital. Based on the area in the Diablo 2 cinematic where baal goes to the gate of Sesheron.
• Will have new bounties and monsters in Adventure mode.

New Monsters:

New Boss:

• Rat King
• Everytime you hit him rats come out of his back.
• Summons Rat Tornados.
• Eats your corpse when you die.

General Changes:

• Three new Goblins:
  • (1) The Blood Thief: Drops Blood Shards
  • (2) Odious Collector: Drops Crafting Materials and Plans
  • (3) Gem Hoarder: Drops Gems
  • Goblins now seek out enemies and have unique minimap icons.

Adventure Mode:

• New Act Layouts in towns. To make all the artisans closer to each other.

Rifts:

• New Boss: Rat King
• Improved random map layout in Rift maps for Oasis, Spider Caves, Leoric's Jail.
• No more long straight ways and loops, they want rifts to feel more fresh every time.
• Experimenting with a new mechanic. Death timer when you die that increases every time you die, instead of just spawning at the last Greater Rift checkpoint.
• Changes to Nephalem Trials coming to be more consistent.

Pylons:

• Pylon Changes
• Shield Pylon: Now reflects damage taken and explodes dealing damage when it ends.
• Speed Pylon: Lasts 1 minute and ignores collisions even allowing you to walk through waller.

Seasons:

• Season 2 on PTR soon.
• They will bring back old conquests and add new ones.
• They don't want a Paragon leader board, as it promotes repetitive gameplay.
• They really liked speed racer conquest. (Complete story mode in an hour)
• Three new conquests:
• Get 50m gold outside of the vault
• Kill certain bosses within 20 minutes of starting the game
• Complete lore books

Legendary Gems

• Will not be redesigning current legendary gems, instead they will be adding new gems.
• Hoping new legendary items will make the under used legendary gems perform better.
• Two new Legendary gems.


New (and updated old) Legendary Items:

• More legendary items will be shown tomorrow
• New item type: Ancient Legendary items.
• Ancient items have higher stat ranges. About a 30% increase.
• Higher chance on higher Torment and Greater Rifts for Ancient legendary items. 5-10% of legendary item to be Ancient quality.
• For example: 500-650 Strength on a Chest Piece instead of 416-500.
• Crown of the Primus: Slow Time gains the effects of all runes
• Wormwood: Locust Swarm deals continous damage. Also rolls 21-25% Poison Damage.
• Gungdo Gear:Exploding Palm's on-death explosion applies Exploding Palm.
• Ranslor's Folly: Energy Twister periodically pulls in an enemy withing 30 yards. An enemy can only be pulled in this way once every 5 seconds.

New Sets:

• Barbarian: Set based on Whirlwind and Rend.
• 2 Piece:Rend Deals 300% more damage.
• 4 Piece: Rend lasts 300% longer.
• 6 Piece: Targets affected by rend take +30)% Whirlwind damage.
• Demon Hunter: Multishot and Discipline
• 2 Piece: Gain 2 Discipline every time you use a Hatred Generator.
• 4 Piece: Take 20% less damage if there are enemies within 40 yards.
• 6 Piece: Every point of Discipline you currently have increases the damage of your Hatred Generators and Multishot by 10%
• Wizard: Slow Time
• 2 Piece: Casting Arcane Orb, Energy Twister, Magic Missile and Shock Pulse reduce the cooldown of Slow Time by 1 second.
• 4 Piece: Enemies affected by your Slow Time take 1250% weapon damage every second.
• 6 Piece: Enemies affected by your Slow Time take 500% more damage from your Arcane Orb, Energy Twister, Magic Missile and Shock Pulse.
• Monk: Sunwuko Set Changes
• 2 Piece: Casting Cyclone Strike, Exploding Palm, Lashing Tail Kick, Tempest Rush or Wave of Light causes a decoy to spawn that taunts nearby enemies and then explodes for 100% weapon damage.
• 4 Piece: Enemies hit by the decoy explosion take 500% from your Cyclone Strike, Exploding Palm, Lashing Tail Kick, Tempest Rush or Wave of Light abilities for 3 seconds.

Seasons:

• New Boss: Rat King

Class Changes will be discussed at tomorrows Diablo panel.