My Cataclysm radar says October/November

Unofficial source, Amazon, has just updated me on my pre-order of a Cataclysm related book. It will arrive October 21st. Can the game be far behind??

Hello from Amazon.com.

We're writing about the order you placed on May 18 2010 (Order# _____). Unfortunately, the release date for the item(s) listed below has changed, and we need to provide you with a new delivery estimate based on the new release date:

 Christie Golden "World of Warcraft: The Shattering: Prelude to Cataclysm"
   Estimated arrival date: October 21 2010