New zones within the "old world"; Vash'jir. Mount Hyjal, Deepholm, Uldum, and Twilight Highlands
New race/class combinations: Human Hunters, Gnome Priests, Dwarf Mages (despite them being listed as playable in the original World of Warcraft manual, they were not playable), and Tauren Paladins, among others.
Flying in Azeroth; player must purchase Flight Master's License. Does not apply to Azuremyst Isle, Bloodmyst Isle, Isle of Quel'Danas, or Eversong Woods.
New Races: Worgen and Goblins
New appearance for Stormwind
Zones in Azeroth can be randomly engulfed in flame by Deathwing; a player caught in these fires gained an achievement. These random fires continued until a later patch, once Deathwing had been defeated by the player base.
World of Warcraft: The Board Game [Shadow of War·BlizzCon Epic Armor Pack·The Burning Crusade·Scion of Darkness] ·World of Warcraft: The Adventure Game·World of Warcraft Trading Card Game·Peggle: World of Warcraft Edition·Monopoly: World of Warcraft Collector's Edition·World of Warcraft Miniatures Game·World of Warcraft: Trivial Pursuit
Blackrock Caverns·Deadmines·End Time·Grim Batol·Halls of Origination·Haour of Twilight·Lost City of the Tol'vir·Shadowfang Keep·The Stonecore·Throne of the Tides·The Vortex Pinnacle·Well of Eternity·Zul'Aman·Zul'Gurub
Hearthstone [Curse of Naxxramas·Goblins vs Gnomes·Blackrock Mountain·The Grand Tournament·The League of Explorers·Whispers of the Old Gods·One Night in Karazhan·Mean Streets of Gadgetzan·Journey to Un'Goro·Knights of the Frozen Throne·Kobolds & Catacombs·The Witchwood·The Boomsday Project·Rastakhan's Rumble·Rise of Shadows·Saviors of Uldum·Tombs of Terror·Descent of Dragons·Galakrond's Awakening·Ashes of Outland·Scholomance Academy]