Fighters Pass 2
Chance: 20%
While Smash has been breaking records all around and selling like hotcakes, I don't think we're getting any more fighters beyond this. Even in the event that we do, it may not be in the form of a pack, like this one. People often point to Splatoon, Mario Tennis and Mario Kart to say "But Nintendo is learning to support their games in the long run! There's no way they wouldn't do that for Smash!", but the problem is that these are all games made by different teams with different game design visions. Yeah, it's possible, but don't count your chickens before they hatch.
Want: 90%
The only reason this isn't a 100% is because unless we get the possibilities of Spirits and Asist Trophies being promoted (unlikely imo), most characters in subsequent DLC would probably still be third parties. If somehow we could get Spirits, however, several characters like Dixie Kong, Bandana Dee, Elma, Paper Mario and others would suddenly find themselves back on the run again, which is an interesting prospect.
Stages outside the Fighters Pass
Chance: 30%
I honestly think this is unlikely, considering most standalone stages in 3DS or Wii U were old stages. So unless we get stuff like Planet Zebes, Sector Z, Pac-Maze or Poké Floats, I wouldn't really count on it.
Want: 60%
Not a priority of mine, but if it happened somehow, I'd be okay with it, even for stages that I think don't make much of a difference, like some of the missing N64 ones. If we somehow got all-new stages, that would be kinda neat, I won't lie.
Echo Fighter DLC
Chance: 20%
While they take less time to develop compared to original characters, I don't think Sakurai is willing to spend post-launch development time on them, even if they were sold at a lesser price and didn't have any extra content (stages, music, Spirits) with them.
Want: 75%
This would be a great shot for some of my wants, especially if Spirits/ATs were back on the speculation game. Octoling, Shadow, Proto Man, Impa... there's quite a few possibilities and, judging by the fanbase, there are enough people who would pay for it.
Nominations: Kyo Kusanagi x 10