The Canon EOS 7D Mark II announcement stated that "November 2014" was the expected availability date for the camera. If memory serves me right, B&H had originally listed a date in mid-November on their preorder page (though it now shows a less-specific "November 2014").
But now Amazon is listing the expected availability of Canon's new flagship APS-C sensor camera as October 30.
Granted, that's only two days before November. However, it's roughly two weeks earlier than what we were led to believe early on...
Amazon has the Canon EOS 7D Mark II available for preorder.