Blizzard Entertainment has posted a terrific peek at the next World of Warcraft content update called "Secrets of Ulduar". Included in the patch peek is a long video that gives some of the background for Secrets. Grab the link below:

With the upcoming release of Secrets of Ulduar, the next major content update for World of Warcraft, Ulduar's gates will swing open, allowing heroes of the Horde and Alliance to venture into the titan Pantheon's ancient halls.

In addition to an all-new raid dungeon, Secrets of Ulduar will introduce the dual talent specialization system, new quests at the Argent Tournament, and the epic tier-8 armor sets.

You can read much more about Secrets and the changes it will bring to the game by heading out to the link above.