With all the work required to translate the SNES games, I agree this release will probably be Japan-only. If Square Enix did bother localizing it, they would probably have to sell it as a separate retail game to recoup those costs. It would be a niche collector's item, but I for one would love to play those SNES versions for the first time. Otherwise, they should just release all of the NES games on Virtual Console prior to DQX. The fourth game in particular is pretty expensive on the used market (it was released here well after the SNES launch).