This commercial started airing on 11/6, apparently:
http://www.jp.playstation.com/movie/cm/asx/cm_shirokishi_teaser.asx
The game doesn't actually come out until December 25th.
The CG looks cool, but they also used fugly footage of the online mode. At least they're letting people know the mode exists.
Imagine if SCEA or SCEE advertised games with dedicated commercials two months in advance of release. I can't help but think how well games like Uncharted wouldv'e sold.
Personally, I think WKC will be Level 5's best selling game after DQVIII. They've gained some notoriety over the years (especially in Japan), and it's the first game they've worked on with SCE that's actually getting some serious marketing (because Sony knows they need this game, lol).
Here's some cool concept art:
