Yeah, I must say that Nintendo sometimes becomes to restrictive and somewhat old fashioned, times have definetly changed and the gaming market there's always competition, it's a shame that even the Wii-U won't even have a DVD feature, it's shame since the current consoles already have this, it's old technology and Nintendo should step it up IMO.
Also, a survivor mode like All-Star would be nice, but in view it should be more concurrent meaning you aren't allowed to leave tbe stage once you're there,
it would be an endurance type of match kinda like Tekken's or Mortal Kombat's, inba similar stance, of course some health would spawn as well.
Also more online feature like leaderboards, a chat like IM or Skypw for example could be implemented and of course less or NO lag at all, hopefully since Sakurai does somewhat have experience with online, he'll learn from his mistakes and improve upon it, I believe he will since SORA will help in development as well, any ideas/suggestions could be addressed to him as well, hopefully that will be the case.