From conversations I've had with various people in the industry, localization is cheap. Since most games these days are made so that text can be easily translated, or translated in tandem with the development of the game, its cost is practically figured into the development costs of the game. With that in mind, to what detriment is it for Nintendo to just localize everything they already pay to develop?
It really makes no sense at all to me. At this point, I want to say of all of the companies out there, Nintendo has the most disparity in offerings across regions. That's absolutely insane. They are the biggest company in the industry, they have the most money, and can easily acquire resources as needed. Arguably, they have the most loyal fan base as well, but that's more speculation than hard fact. Assuming that, you'd think that there's at least some guaranteed sales for some of these games in all regions regardless of what they are.
I understand that even with more resources, at some point the company will be stretched too thin to necessarily handle everything, but right now Nintendo of America has (seemingly) nothing going on. There's no excuse, or even a reasonable explanation, why this, The Last Story, Pandora's Tower, and others aren't on their way to America. Given the thin Wii line up, we should see NoA reaching into the backlog and bringing over anything possible to keep the Wii train going. We've probably got a year to Wii U at this point, and that's way too long to only have a few token games released.