A portion of a Famitsu interview with Ace Attorney 6 devs...
F: What’s the theme and concept of Ace Attorney 6?
Takeshi Yamazaki, director: “Throughout the series, Phoenix Wright is in a place that lacks enemies. Because of that, we’re paying more attention to the world this time.”
Eshiro Motohide, producer: “It’s tough to develop within the Japanese courtroom, since an exhilarating part of the game is how situations can change from from desperate to complete turnabouts. The theme is ‘courtroom revolution.’ Phoenix Wright changing the system of the court is a major theme.”
F: Will the beginner system from Ace Attorney 5 return?
Motohide: “The backlog, amount of save data, and such are things with good reputation, so they’ll return. As for the hint system, I want players to be able to turn it off at any time.”
Ace Attorney 6's development is currently 30% complete and there is no official release date at this time.