Endless Ocean (old-HD or, new with touchscreen control)
Pilotwings (a whole "miniaturized" globe to explore, like the America you could explore in Pilotwings 64 )
Animal Crossing (map editor)
Intelligent Systems (Anything)
Chibi-Robo (old-HD or new, with touchscreen control)
Trauma Team (old-HD or new, with touchscreen control)
Picross or any puzzle game, reversi online, card games, anything! Easy port!
Pokémon Trading Card Game (just port it - could be done over the weekend)
All of this, except for AC and hopefully IS, is less than 0% chance.