No offense, but I pointed out flaws in this.
First and most of all, the Wii U will no longer be supported within a few months now that the Switch is at its wake. Second, PS1, PS2, PSP and Xbox are owned by Sony and Microsoft, both of which are first-parties and not contributing with Nintendo. Third, DOS and classic macOS are not going to be re-released in their original forms; we have DOS and macOS emulators, including DOSBox Wii which you can use in vWii mode on Wii U. Fourth, Sega 32X, GameCube and Dreamcast may be hard to completely run without flaws on Wii U VC in the same way as the existing platforms (excluding Wii digital titles). And finally fifth, that may be a bit too much to include, unless you're one of those people impatiently waiting for Switch VC.