According to Tabata, Type 0 was largely localized into English and other European languages but never released for logistical reasons. That could happen with Agito as well -- though it seems unlikely, given the fact that Agito's platform (iOS) has a much stronger presence in the West than Type 0's (PlayStation Portable, which at the time of the game's 2011 release had dried up outside Japan).
With that caveat in mind, Tabata also stated that he sees Agito and Type 0 as companion titles, and that they're best enjoyed with one other. Therefore Tabata says he still hopes to bring Type 0 to the West via PlayStation Network, and while a complete localization hasn't been greenlit it's definitely in the final stages of planning. While quick to offer the same localization-is-not-a-guarantee-of-release caveats for Type 0 as for Agito, he made clear the fact that both fan enthusiasm for the game along with the changing portable market have caught the company's eye and renewed their interest in bringing it overseas.