Level-5 is expanding the Professor Layton franchise into 3D with the new Mask of Miracle, but that added dimension isn't the only expansion taking place in this game. During the Level-5 Vision conference, CEO Akihiro Hino announced that the new 3DS puzzle title will have daily downloadable puzzles for a year. Previous Layton games have had weekly puzzles available through the Nintendo Wi-Fi Connection. (And if you didn't know that, you suddenly have a bunch of bonus puzzles waiting in your Layton games!)
Hino also noted that Mask of Miracle was originally developed -- and announced -- as a DS game, but added, "We redid it from scratch midway through." He also revealed that the story takes place across two timelines, with a younger Professor Layton and the present-day (in the game's world) version both solving puzzles.