The regular digital edition costs 44.99 euros. Those who pre-order it from Blizzard will instantly benefit from a level boost to the current maximum level of 90. With World of Warcraft: Warlords of Draenor, leveling up to the magical 100 will be possible.
Mount and Pet of the Deluxe Edition revealed
For connoisseurs and collectors, Blizzard also has the digital Deluxe Edition on offer. With it, you will become the proud owner of a new flying mount: a Dread Raven (in English, this guy isn’t called Chirpy as one might expect, but Dread Raven Mount). You can observe this beautiful specimen in full dreadful glory with the folks over at mmo-champion (or alternatively below the post).

Additionally, the Deluxe Edition comes with a pet (which is a code for one, otherwise shipping would be difficult). The Dread Hatchling, the mount in small, will surely serve you well in Pet Battles. Both skins resemble the Raven Lord from the Sethekk Halls, a coveted mount not many players own.
If you are also active in Starcraft, you can look forward to special portraits; if you enjoy the hack ‘n slash Diablo 3, you can call a special war banner your own after acquiring the Deluxe Edition of Warlords of Draenor. As always, the mount and pet will be exclusive to the Deluxe Edition.
Release date yet to be determined, likely in October or September
Blizzard can’t get any exact release date out, however. They only assure that Warlords of Draenor will be released in 2014 and give “Fall” as an approximate date. Wild speculation leads to October or September, approximately around the time Mists of Pandaria was released in 2012.
As of today, you also have the option to purchase a level-up directly in the in-game shop. Fresh level 90s will be equipped with green gear, the item level of the equipment being 496. The externally funded hero receives a palette of 22-slot bags. If they were already level 60 when using the boost, they receive professions of choice at the current maximum level of 600.