Here's a concept for a smash bros arcade game.
>2020 release date
>Uses the same engine as Ultimate
>About 34 starting characters
>6 of them are newcomers
>All the 3rd party newcomers have a relationship with arcades
>More characters will be added with updates
Starting/Day 1 roster
From 64: Mario, Link, Donkey Kong, Fox, Pikachu, Kirby, Luigi
From Melee: Peach, Bowser, Zelda, Sheik, Ganondorf, Marth, Ice Climbers
From Brawl: Diddy Kong, Pokemon Trainer, Pit, King Dedede, Meta Knight, Sonic
From Wii U/3DS: Villager, Mega Man, Pac Man, Ryu, Robin, Shulk
From Ultimate: Inkling, King K Rool, Simon Belmont, Ridley
Newcomers: Scorpion (Mortal Kombat), Don-Chan (Taiko No Tatsujin), Ayumi Tachibana (Famicom Tantei Club), Rex (Xenoblade Chronicles 2), Ribbon Girl (ARMS), Gen 8 PokeRep.