It seems Capcom is making a prequel for Phoenix Wright called Gyakuten Kenji, Kenji meaning prosecutor, aka Perfect Prosecutor. The gameplay is supposedly different, meaning no court trials but walking around, gathering evidence, and investigating crime scenes with Dick Gumshoe. Even though its not like Phoenix Wright this seems exciting!
Source:http://kotaku.com/377663/phoenix-wright-spin+off-features-walking
Source:http://kotaku.com/377663/phoenix-wright-spin+off-features-walking