There has been a leak that suggests Square-Enix will be bringing The World Ends With You over to iOS. There is a soundtrack for the game coming out and it mentioned that the game would be heading to iOS. This statement has since been removed though. Looks like they leaked the information out to early. The countdown isn’t over yet on the teaser site, so there is still hope that a sequel will be coming out on a Nintendo device. Here is what a translator for the game said about this leak:
Looks like there is more information to come when the countdown hits zero.