I'm hoping Tokio Mirage Sessions, Fatal Frame V and Super Mario Maker getting ported, these are still missing but pretty great Wii U games, the first one in particular for me.
Mario Maker was my favorite Wii U game. Also I think it would have been a much better launch game than Nintendoland. People love Mario, and it gives a very good reason why you'd need the Wii U gamepad.
A bad launch is one of the many reasons why the Wii U did not do well.