World of Warcraft: The Burning Legion?

The guys at Kotaku have published a leaked scan of next month's issue of The Games Machine, which appears to proclaim that the World of Warcraft expansion will be titled "The Burning Legion." In addition, the Italian text on the cover states that the expansion will increase the level cap to 70.

Then, later on, they report that the magazine cover was deliberately changed to remove any reference of a World of Warcraft expansion. So... either the whole this is a hoax (not likely) or Blizzard has done everything in their power to keep this information tucked away until BlizzCon.