Overall disappointing. 9 unique fighters is only two more than Sm4sh, and I expect a lot more than that considering how successful the Switch is. DLC echoes likely won't happen either, as there's no need to rush fighters. Picks like Impa, Viridi, Skull Kid, and Sylux aren't exactly exciting either. Like, I wouldn't buy those characters if I wasn't inclined to have the full roster.
That being said, I'll piggyback off of this and ask you guys to rate this lineup:
Before I start:
- Echoes are italicized
- Slashes indicate that one of the two characters will get in
Base Roster
Incineroar (Pokemon)
Sora/Geno (Square Enix)
Steve (Microsoft)
Ken (Street Fighter - Ryu)
Shadow (Sonic the Hedgehog - Sonic)*
DLC
Sora & Roxas/Geno (The one that didn't make it into base, Roxas is added if Sora is DLC) (Square Enix)
Isaac (Golden Sun)
Rex & Pyra (Xenoblade Chronicles 2)
Chorus Kids (Rhythm Heaven)
Spring Man & Ribbon Girl (ARMS)
Bandana Waddle Dee (Kirby)
Paper Mario (Paper Mario)
Lloyd Irving (Tales of Symphonia)
Jin Kazama/Heihachi (Tekken)
Joker/Yu Narukami (Persona)
Arle Nadja & Second Puyo Puyo character (Puyo Puyo)
Dante (Devil May Cry)
Rayman (Rayman)
Crash Bandicoot & Coco Bandicoot (Crash Bandicoot)
Banjo & Kazooie (Banjo-Kazooie)
Tails (Sonic the Hedgehog - Semi clone of Sonic)*
Octoling (Splatoon - Semi-clone of Inklings)
Dixie Kong (Donkey Kong Country - Semi-clone of Diddy Kong)
*If a Sonic character is in base roster, it will be Shadow as a Sonic echo. If not, it will be Tails as a Sonic semi-clone
Overall 22 characters, though it's more like 20 if you account for the fact that three are echoes and three are semi-clones. I could easily see this being done over the course of 2 - 3 years, which is likely what this game's lifespan is going to be. I also expect the DLC team to be slightly larger and more dedicated due to the Switch's success and Nintendo's new push for DLC in their games, so anywhere from 7 - 10 characters a year is reasonable.
DLC is going to be where Nintendo hits hardest in terms of hype picks because they need to sell us on the merit of the characters alone.