Factions - The World of Warcraft will consist of two opposed factions: The Alliance , consisting of Dwarves, Humans, Gnomes, and Night Elves; and The Horde , which consists of Orcs, Tauren, Troll, and Undead.Updates - Blizzard plans to provide additional monthly content, including new adventures, quests, and items.Quests - A robust quest system. For more information on quests, click here .