It will not come to DS but may do it on 3DS
Capcom USA doesn't give up and they have revealed that they are still working on the US localization of the game.
All the info comes from the recent 'Ask Capcom' community event where Capcom revealed that they are still triying to localizate the game for the North American players, even that it was said a month ago that Ace Attorney 2 wasn't headed to US market. Good news after all.
According to GoNintendo:
So, if the game will ever come out it surely do on the Nintendo 3DS, not in DS.
NEWS SOURCE: http://www.gonintendo.com/?mode=viewstory&id=176218
Our thanks to 'Kaos2K' for this news story!