Broodwars may be onto something here. If they have any intention of releasing the games here they may be waiting until they won't be overshadowed by Zelda, and as far as we know there's nothing else coming out for the Wii in the next year. I still don't think they're going to, but that makes infinitely more sense than protecting Zelda.
The problem with that theory, though, is that Xenoblade was ready for release in Europe
months ahead of Zelda. Zelda really shouldn't have been a factor here. I suppose Nintendo could think in their warped little universe that Nintendo owners would be too busy buying 3DS titles they never did, but I doubt it.
As I've said before, if Nintendo of America were going to release Xenoblade in NA, I think they'd have told us by now. Zelda's practically out on store shelves now, and after Nintendo's abysmal financial report they should be desperate to announce
anything Wii owners can buy after Zelda before the Wii U arrives. A game that's already finished and ready to be put out on store shelves within months would theoretically be perfect for the situation. I think the game they're debating on right now since NoE hasn't announced a release date yet is The Last Story. They could be shooting for a simultaneous release with NoE this time, which could be why NoE hasn't dated a game yet that must be relatively close to release by now.
As for Pandora's Tower, I just don't see that happening in NA. I don't know if even
I'd buy it, given that it doesn't seem to do much that I didn't already get in Castlevania: Lords of Shadow last year. Oh right, it has Japan's obsession with climbing towers and multiple endings determined by arbitrary factors. Day 1 purchase!