Nintendo released a new trailer for Dragon Quest IX, on the same day it announced the news of the new DSi XL color. It's kind of co-marketing the two without explicitly making a connection.
This trailer features the wonderful animation seen in the North American announcement trailer, with one welcome addition: actual gameplay footage. Nintendo also released a ton of character art, depicting the various character classes you can choose to play. You can find that treasure trove of Akira Toriyama artwork in our gallery.