It’s been a long time coming, but finally Blizzard has put an official release date on World of Warcraft‘s fourth expansion pack, Mists of Pandaria.

The pack will be available September 25 both at retail and digitally, for PC and Mac. A Collector’s Edition of the expansion will be available exclusively at retail stores, and a Digital Deluxe version is available from Blizzard’s store, which contains all the in-game bonuses from the Collector’s Edition.

The Digital Deluxe version contains the following:

• World of Warcraft In-Game Mount: Take to the skies of Azeroth astride the mystical Imperial Quilen flying mount.
• World of Warcraft In-Game Pet: Journey across Pandaria with the Lucky Quilen Cub at your side.
• StarCraft II Battle.net Portraits: Bring the Horde and Alliance rivalry to the far reaches of the Koprulu sector with exclusive Infested Orc and Night Elf Templar Battle.net portraits.
• Diablo III Banner Sigil and Accent: Display your status as a hero of Pandaria with the iconic markings of World of Warcraft’s newest playable race, the pandaren.

The Collector’s Edition contains all of the above items, plus the following:

• Behind-the-Scenes DVD and Blu-Ray: Learn about the creation of Pandaria with this two-disc set featuring over an hour of commentary, insider interviews, and developer roundtables.
• Collector’s Edition Soundtrack CD: Experience 20 orchestral pieces from Mists of Pandaria.
• The Art of Mists of Pandaria Book: Explore this 208-page hardcover tome featuring never-before-seen pieces from the expansion, from early concepts to final 3D renderings.
• Chen Stormstout Mouse Pad: Equip your desk with this special-edition mouse pad featuring the legendary pandaren brewmaster.

Which version of the expansion will you get? Let us know in the comments below.