I don't personally care about any of these, but I can certainly see why people would want them. Honestly, I really don't care about UI and whatnot...just give me more games to play.
EDIT: Actually, I have spoken in depth about a "Challenge" system as opposed to an achievement system, but I really doubt that any company would be willing to go that route...
EDIT2: Oh, and an Amiibo hub game...







