Namco Bandai passed on publishing Tales of Innocence for the Nintendo DS years ago, but there is a glimmer of hope for an official localization.
A few days ago, Namco Bandai filed a trademark for Tales of Innocence. Odd considering they already own a Tales of Innocence trademark from 2007. Even if Namco Bandai was being overprotective, two trademarks for the same title and application is a bit overkill.
Namco Bandai is in the process of reviving the Tales series in North America with Tales of Graces F. Perhaps, they’ll throw fans another bone with an English version of Tales of Innocence. Since the DS market is slowing down, a 3DS version is a possibility. Given how common Tales ports are it’s not too hard to imagine either.