[UPDATE] Following the publication of this story, Blizzard Entertainment confirmed Warlords of Draenor as the next expansion for World of Warcraft. A FAQ on the World of Warcraft website lists out the specific additions, but the highlights follow below:

Explore a Savage World: Explore the hostile world of Draenor, home of the orc and draenei races, as it once existed, and adventure in all-new zones alongside characters central to Warcraft history.

Explore the hostile world of Draenor, home of the orc and draenei races, as it once existed, and adventure in all-new zones alongside characters central to Warcraft history. Build Your Garrison: Construct, command, and expand your own customizable stronghold on Draenor, and gather NPC followers to collect resources and embark on missions on your orders.

Construct, command, and expand your own customizable stronghold on Draenor, and gather NPC followers to collect resources and embark on missions on your orders. Instantly Upgrade to Level 90: Boost one character of your choosing to be ready to adventure on Draenor, making it easier than ever to enjoy the latest content alongside your friends.

Boost one character of your choosing to be ready to adventure on Draenor, making it easier than ever to enjoy the latest content alongside your friends. New Player Character Art: Character models and animations for many of World of Warcraft’s existing playable races are being fully revamped in keeping with the game’s iconically epic style.

Character models and animations for many of World of Warcraft’s existing playable races are being fully revamped in keeping with the game’s iconically epic style. Adventure to Level 100: Reach new heights of power and unlock bonuses to further enhance your abilities on your way to the new level cap of 100.

Reach new heights of power and unlock bonuses to further enhance your abilities on your way to the new level cap of 100. …And More: Take on a wide array of Dungeons, Raids, Scenarios, Battlegrounds, Challenge Modes, and more—no matter what kind of content you enjoy, new adventures await.

For a more thorough rundown, be sure to check out our feature on everything you need to know about Warlords of Draenor.

The original story is below.

It appears Warlords of Draenor is in fact the next expansion for Blizzard Entertainment's MMORPG World of Warcraft.

A Warlords of Draenor logo was spotted by MMO-Champion during Blizzard's own BlizzCon pre-show footage. No further details are available, though more information is expected later today during "World of Warcraft: What's Next" panel starting at 12:30 PDT.

A Warlords of Draenor page at Battle.net also exists, though it currently leads to a 404 error.

Blizzard trademarked Warlords of Draenor last week, leading some to believe it was the next expansion for World of Warcraft. Activision Blizzard CEO Bobby Kotick said during an earnings call this week that "significant and exciting" content for World of Warcraft is in development for 2014.

Warlords of Draenor would be the fifth expansion for World of Warcraft, following The Burning Crusade (2007), Wrath of the Lich King (2008), Cataclysm (2010), and Mists of Pandaria (2012). World of Warcraft currently has 7.6 million subscribers and is the top subscription-based MMO on the market.