I thought this was just a case of Best Buy cutting and pasting from another more informal site, but Google doesn't find the same text anywhere else, so this might actually be a disgruntled WoW player in their system writing out a fairly biased description. The text still says a release date hasn't been announced (and of course it has) so look for the text to change soon (just in case it does, the full text is after the jump). But wherever you are, disgruntled WoW player, thanks for the laugh.
The continent of Northrend heaves and quakes: The Lich King, Arthas, stirs in his icy fortress. Great armies of Undead rise from the frost, fueled with the necromantic magics of the mighty lich, driven solely by the urge to scourge the life from Azeroth. Achieve greater levels of power and battle other high-level heroes as you invade Northrend to defeat this terrible new threat.
New levels of power (up to level 80) will become accessible, along with new talents and abilities. A powerful new Inscription profession will unlock even more powerful magical spells and effects.
Epic siege warfare (1% chance to drop, bind on pickup) includes destructible buildings and PVP objectives. Explore new dungeons with fantastic new creatures and amazing treasures.
You'll also be able to customize your character's look with new hairstyles and dances. Rumour has it that a new "hairstyling" profession may be open to blood and night elves.
Finally, an awesome new class - the Death Knight - will be achievable as WoW's first Hero Class. A long quest full of perilous challenges will gift the user with the powers of turned Dead Riders. A class-specific power - "Unbalance Game" - is available to the Death Knight class on a one-patch time limit cool down.
Please note: The release date for World of Warcraft: Wrath of the Lich King has not been confirmed. Pre-order your copy today and you could be the first to defeat the King Arthas when it becomes available.