Upscaled Kirby 64 would be awesome. Kirby;s Tilt n Tumble would be another no-brainer addition to the collection, but I'm sure nintendo will just include the "Main" kirby titles (Kirby's Dreamland 1-3, Adventure, and SuperStar), and maybe pinball. Honestly, there are enough good kirby spin-offs to fill up a whole collection.
New Super Mario Bros. 2? But NSMBW is a completely different game from NSMB, doesn't that make it a sequel too? Or a spin-off in between with different levels?
On another note, thinking about Kirby 64 made me think about how NSMB's "2.5D" sucks in comparision.
I'm pretty sure you have to have a Wiimote to navigate the home screen.
You can use a classic controller as well, but that still requires a Wiimote.