Ever since those Capcom leaks from years back I've been on pins & needles for an official announcement, because everything else from the leaks had proven credible. Yet conference, after award show, after anniversary celebration, after concert -- each a great opportunity to announce -- passed by with no word. It got to the point where I began to wonder if AA7 simply failed to come together and got cancelled at some point.
After Kenichi Hashimoto's 4Gamer interview I'm no longer worried that the game's been scrapped. I'm guessing the longer wait is just a consequence of the team adjusting to working with the RE engine, possibly compounded by some experimentation/expansion with the formula. This will be the first time an AA game isn't being developed for a hand-held initially and on an engine that's capable of quite a lot.
IIRC in that same 4Gamer interview or some other recent one it was mentioned that Capcom is really happy with how the AA collections are doing, especially in the west. Ace Attorney Trilogy was the first release in the series to crack 1 million (in a single version, if you combine DS/GBA/Mobile/3DS sales other entries have likely passed 1million as well) and it's got fantastic legs. As of the latest Capcom platinum games update AA Trilogy has sold 2.60 million units, wouldn't surprise me if it passed 3 million in a year or two.
I think Capcom is gonna give the new collection its time in the spotlight for another 6 months to a year and then announce AA7. Hopefully when they do announce it's with a release date first trailer, that's not far off. I'm really expecting big things from this one. The team had gotten so good with the 3D style by the time they reached GAA, I can only imagine what they're cooking up on RE engine.