Whelp, guess I need to get a 3DS now, damn you Nintendo. Hopefully they release their new revision before this comes out.
Both this game and the Phoenix Wright Professor Layton crossover game are going to be playable at TGS. I would guess that TGS or around TGS is a likely time to announce any localization plans. Professor Layton is a property which has sold millions both in Europe and North America, and Phoenix Wright has sold hundreds of thousands - it would be kind of stupid not to localize them - Capcom has had a tendency to be late with those though.
I wouldn't say they'll have any new revision until 2014, since the 3DS XL just came out.