Well according to [post=129760589]Letterbomb's post[/post] the moves are only obtainable in the 3DS version so it is possible that, while one can still customise things in the Wii U version, to get the customisable options you also need the 3DS version.Since Palutena's entire gimmick requires the customization screen, it's very unlikely that it's 3DS only.
But like I said, best to wait for the official word on the matter.