It's not due to that stupid idea of Nintendo owning the localization or whatever crap people keep saying. I don't even know why people keep saying that. I think they'll redub for continuity sake, new content, and possibly being unable to reuse their original dub recordings.
Ah. I simply don't think it will be affordable, given the $40 price point. Paying higher per hour price for the original cast to voice new content might be cheaper than an entire re-voice, though being unable to re-use the existing dub would be an issue.