What does NSMB for Wii U need?

[WiiBox3]

1. More Super Mario Bros. 2 - Shy Guys, Turnips, etc.
2. Keep local co-op, but add online as well.
3. Have the main 4 characters: Mario, Luigi, Toad, Princess Toadstool
4. Keep the option to use your Miis. This is good for the blue ocean.
5. Bring back Wart.