The following comes from a Kotaku interview with Ace Attorney producer Motohide Eshiro.

Eshiro: "So after the ending of Apollo Justice, Phoenix says he's gonna become a lawyer again. He becomes a lawyer once again. He has his attorney's badge back. He actually has a very important promise to keep this time around, so he's gonna go keep his promise.

The story revolves around both Phoenix Wright and Apollo Justice and this whole situation that they have entered. And it has all the plot twists you have come to expect from an Ace Attorney game.

So the actual flow of the game, going from investigation to court and investigation, that hasn’t changed. What has changed is, during the investigation part, you’re not looking at just a 2D scene anymore. You’re actually looking at full 3D. When you get to an investigation scene, you can actually look at it in full 3D, move the camera angle, find new evidence, new story bits. That actually enhances the gameplay a lot. It makes everything more interesting being able to look at things from a different perspective.

Kotaku: As you know, the new Smash Bros. was introduced yesterday. What are the chances of Phoenix Wright getting in?

Eshiro: (laughter) I haven't heard anything about the new Smash Bros. yet, but I don't really think that there's a chance that Phoenix could get into Smash Bros.

Kotaku: Well Mega Man did...

Eshiro: I actually didn't know that. I was very, very surprised about that.

Eshiro talked about the localization process, which involved Capcom's Phoenix Wright team working side-by-side with localization staff from the getgo.

"It was a very new process for this series, but we’ve wanted to do it for the longest time. By doing it this way, we’re actually able to get a real high quality translation that’s pretty much to the quality of the Japanese version, and also get that out a lot quicker than usual."

Finally, Eshiro said that a future entry in the series would depend on what players felt and wanted after playing this upcoming entry.

"There's lot of playable content in Ace Attorney: Dual Destinies. Once users start to play that, once they finish the game and they feel like, 'I need to play the next one right now, I need to know what happens next,' we want to get those impressions first, and then decide, 'OK, this is what we’re gonna do with the series.' We’re asking fans to go get the game, try it out, give us your impressions, give us your thoughts and then we can start thinking about the future of the Ace Attorney series."

Link