Make the game like the main RPG and even with X and Y graphics ones but use a remake like Ruby and Saphire or even Diamond and Pearl (since its two generations old now starting October). Make it playable off screen with the GamePad so its like playing a Pokemon game on a handheld and make the TV connectivity like Pokemon Stadium/Collosseum/Battle Revolution when you transfer data to the TV or whatever. And make it so one can bring their Gamepad to a friends house so both can use their gamepads to connect to whoever's WiiU to battle each other on screen Pokemon Stadium/etc style.
And I just realize the Gamepad provides the abilty to play Elite Beat Agents on a home console! Maybe they should make that instead. And Electroplankton, for Eshop.