We still don't have a release date for Blizzard's next World of Warcraft expansion, Cataclysm... but we do have details about what's included in the "Collector's Edition" box! In a press release earlier this week, Blizzard announced the limited-release Collector's Edition of Cataclysm, the third and upcoming expansion for WoW. The package will only be available at retail stores with a suggested price of $79.99, according to the press release.

The collector's edition includes the following "exclusive bonus items" in addition to the game disc: a 176-page artwork book titled "Art of the Cataclysm," a " Lil' Deathwing" in-game vanity pet, a behind-the-scenes DVD, a Cataclysm soundtrack CD, a Deathwing-themed mouse pad and a set of World of Warcraft Trading Card Game cards. The card set includes a 60-card starter deck from the Wrathgate series, two extended-art cards, and two Collector's Edition-exclusive hero cards, marking the first appearance of goblin and worgen heroes in the TCG.

Read the full Cataclysm collector's edition press release after the jump. Be sure to check out ZAM and Wowhead's Cataclysm Beta Key Contest for your chance to preview the upcoming expansion before it hits store shelves, and visit our World of Warcraft portal site for more Cataclysm news and information.

The latest Cataclysm preview from Blizzard introduces Grim Batol, a mountain once refuge to the Wildhammers clan following the dwarven civil war of Ironforge. Located in the Twilight Highlands (of the upcoming expansion), Grim Batol is a 5-player dungeon steeped in lore, tangled between the dwarves, the Twilight's Hammer and the Red and Black Dragonflights. Tuned for level 85 players, the dungeon lies within the cavernous ruins of the mountain sacked by the Twilight Hammer cult, now being used as a training ground for Deathwing's minions.

"The cult, seduced by Deathwing's thirst for absolute domination over Azeroth, has claimed the Twilight Highlands as its base of operations," the Blizzard preview reads. "The black dragonflight has driven off the agents of the red dragonflight who guarded Grim Batol so that it may be used as a fortress for training Deathwing's minions. The halls of Grim Batol run so deep into the highlands that it is unknown to what twisted end the Twilight's Hammer is using this doomed dwarven marvel." Read the full story and view a handful of new screenshots at the Grim Batol section of Blizzard's official Cataclysm preview site.

Over the past couple of weeks, Blizzard has announced massive changes to the 10 classes in World of Warcraft that will be coming with the Cataclysm expansion. For a quick look at what they have said, here are the links:

• Death Knight
• Druid
• Hunter
• Mage
• Paladin
• Priest
• Rogue
• Shaman
• Warlock
• Warrior

Although Cataclysm may still be months away, the developers at Blizzard aren't about to let us simply forget about their world-changing upcoming expansion. In a tightly crafted forum post by Eyonix, the Blizzard development team outlined the major gear and stat changes that are on their way with Deathwing's return. Some of the highlights include the complete abandonment of Defence and Weapon Skill, along with major changes to Stamina, Spirit, and Intellect.

Keep reading to find out more!