I doubt it.
First, because a game typically has at a bare minimum a 4-5 month run-up to release, so we're not really asking "is September 2012 a viable release period for Pandora's Tower", we're asking "is Spring 2013 a viable release period for Pandora's Tower".
Second, because despite XSeed taking a chance with The Last Story, I don't genuinely believe there's any retail market for new Wii software. TLS might be the final major release, but the steady flow of releases hasn't existed since early 2011. I'm not saying "only shovelware sells on Wii", I'm saying "Stores only stock shovelware on Wii at this juncture". I think something like Just Dance 8 could still make it out, but largely on the basis that declining returns on a hugely profitable megafranchise will still be worth it--the same way Madden still comes out years after a hardware is effectively dead.
Third, because of the game itself. I think all games should be localized, especially from major publishers. Don't get me wrong. But it'd be incorrect to assert that all games have an equal chance of being localized, regardless of their genre and quality. I don't think Pandora's Tower is well suited to the North American market on the basis of its genre (not that the genre can't sell, but that I doubt it would have done well on Wii even at its peak) and... frankly, its quality. I know the game has its fans and I know it's not dreadful, but it doesn't really have anything about it besides the mystique of being an unlocalized Japanese game that really screams out to people "You know that Wii you've pretty much moved on for it? You GOTTA check this one last game out." It was always the lowest profile of the three "Rainfall" games, and to me it was there as an also-ran. "Xenoblade, possibly the most universally well received RPG of the generation, epic in scope, you won't believe it's possible on the Wii. The Last Story, from the creator of Final Fantasy. Pandora's Tower, another game that didn't get localized"
If the Wii had a viable digital platform, I could see the game getting a release. A lot of the PSP releases coming out now, even if they do get a physical print run, are making money on the basis of the PSP's digital store. That's something Sony has cultivated for a long time. Clearly Nintendo has realized that you are able to sell full games digitally, but whether or not their platform stewardship on the Wii U will build the broad catalog and vibrant user ecosystem necessary to make digital a viable second chance for Wii games of old, I have no idea.
