So, if we've got 10 more characters:
- K. Rool
- Ashley
- Geno
- Bandana Dee
- Elma
- Lloyd Irving
- Simon Belmont
- Echo: Chrom
- Echo: Dixie Kong
- Echo: Isabelle
1. Bandana Dee (Kirby). My most expected character, honestly. He's popular with both casuals and competitive people in both Japan and the West, probably leading to good ballot turnout. Plus, the most recent Kirby at the time of the roster's creation was Rainbow Curse, which had Bandana Dee playable but not Dedede and MK.
2. King K Rool (DK): He probably did well on the ballot, which will probably be significant for the roster.
3. Ashley (WarioWare): See K. Rool. Ashley is hugely popular in Japan, so that probably led to good ballot results. Her AT is absent, and she would be a dedicated magician, something we lack.
4. Gen 7 Pokémon: We've had a Pokémon every Game, no reason for that to change. I don't know which one, but probably Decidueye or Dusk Lycanroc.
5. Elma (Xenoblade Chronicles X): X was releasing around when the Roster was being decided, and Sakurai would probably be interested in having her. She could have a unique movesets with the various weapons in X
6. Paper Mario: A bit of a Dark Horse choice, I think he's quite possible. When the roster was decided, Paper Jam had just released and Color Splash was on the way. Furthermore, I remember decent support for him on the ballot, and he has a lot of moveset potential. Lastly, the Paper Mario 3DS Stage is yet to be seen, potentially for a reveal?
7. Rayman. Ubisoft and Nintendo have had good relations for awhile. Also, there were those random Trophies in Smash 4.
8. Dark Samus (Samus echo): A lot of coincidences are lining up for it. The assist trophy is absent, as is Samus's DS alt. Ridley's victory music is just a dark version of the regular Metroid theme. Why not go for something Ridley specific unless another Metroid Antagonist is on the way?
9. Octoling (Inkling Echo): The Octolings are getting a huge push with the Octo Expansion, why not pull a Roy and add them to promote it?
10. Ninten (Ness/Lucas Semi Clone). I don't have anything, I only really predict the first 9.