There are some games I hope Nintendo makes for the DS. The Pokémon Company has said that they will still have DS Support, so maybe we could see things like Mystery Dungeon (hopefully like what they did with Blue & Red Rescue Team) and maybe even Ranger. That's really all I can think of at the moment because this thread is for games that haven't even been revealed yet (in other words, your fantasy) by Nintendo. I do see the remaining Pokémon DS Games also possibly having 3DS counterparts, or maybe being 3DS-enhanced?