Single Status Update
Sakurai could be totally trolling but I saw him post a picture of the Pokémon Trainer in Smash Ultimate several days ago and he's holding up three fingers in that direct promo.
That makes me think that perhaps the 5th Fighter could be a new Pokémon Trainer with three new Pokémon. Most likely from Sword and Shield.
That's just a prediction I have based on what he recently shared. If true, then I also predict anger.
...But that's gonna happen regardless of who it turns out to be.