They've localized almost everything in recent years. Dragon Quest simply hasn't been that successful outside Japan, so in DQ's case they have let Nintendo do it. It's simply no wonder if they are a bit more careful nowadays given how they were given shit back for all their efforts (most of their PSP & DS efforts didn't sell all that well). DQ Slime is as niche as games get, 3DS sales aren't all that hot, 1 + 1 = no localization. And Type-0 was released for an already-dead-in-the-west platform, so there's a good reason for it not having a localization. I don't see any reason NOT to be confident that Bravely Default arrives outside Japan, especially given Nintendo's announcement about helping Japanese 3rd parties get games released overseas. But just like its spiritual predecessor, it simply isn't a priority project as far as localizations go.