YuseiFD made some surprisingly good progress, people were just too concerned with backseat moderating them even though they hadn't broken any rules.
Of course, if someone were to possibly port the translation to 3DS, it would require some significant changes, like a thinner/better font, text box size increases, possibly more lines per text box if adding more to a character's speech isn't possible. There's also all the menus that'd have to be reworked to fit the localized terms and stuff, and that would take a long while.