First Professor Layton vs Ace Attorney screenshots. The new characters accompanying the professor, Phoenix, Luke, and Maya, are Mahoney, the blond girl accused of being a witch; and Jeeken, the ginger prosecutor/knight.
This Level-5/Capcom 3DS collab, which has only been announced for Japan so far, introduces a “Mob Judgment” system in which "Phoenix goes up against a crowd of witnesses" and “witnesses may talk amongst themselves during a cross-examination”.
Preorder: Professor Layton & the Last Specter, a 3DS
Find: Nintendo DS/3DS release dates, discounts, & more
See also: More Tokyo Game Show 2011 news/media
[Via Famitsu, Andriasang, Court-Records]