Well, Luke Level-5 trademarked Black Market and Akihabara Black Market, a sign that the developer of your game and Inazuma Eleven has a new series in the pipeline. As you may know, Akihabara is the name of Tokyo’s "electric town." It’s home to gadget stands, but perhaps more internationally recognized as an anime and video game haven.
While Luke and Layton explore Black Market areas in the Professor Layton games, I doubt this has anything to do with the duo. Level-5 also registered a trademark for Cyberanimal, which as a wild guess, I’ll imagine as some kind of animal trading game.