A beautiful, atmospheric trailer (after the break) introduces us to the story of the new Shiren the Wanderer ... such as it is. Basically, Shiren's master, knowing that Shiren likes dungeons, gives him the key to the Karakuri Mansion, which is a big dungeon. There's more, like a cursed princess and some time travel stuff, but the essence is that Shiren goes into another dungeon. It's rather lucky for us that Shiren's wanderings are so often directed toward dungeons and dungeon-type environments.
Atlus also highlights Shiren's pal Koppa in the trailer, allowing us to hope that the company will choose to bundle the game with Sega's Koppa Wiimote stand.
Why did they leave out these options? Because they didn't think enough people in NA would buy the game to make it worthwhile? Or some "technical" issue?
It couldn't be that not enough people bought it in NA. I remember when I was playing Shiren on the DS, I found tons of people in several forums that were posting Rescue missions.