I think that Nintendo is going to use it's launch schedule of fighters to promote and tease upcoming ports and releases to the switch. Piranna plant might be teasing a new Yoshi title. Joker, Persona 5 (I still stand by this, I don't think Nintendo would give him a slot in smash for a dancing game they don't have out yet.) I think Shantae sometime soon. And I actually find doomguy totally probable because of this. It's very likely Doom Eternal launches in either spring or summer based on the very well packaged smooth trailer footage we got in October. Also Bethesda seems to like to hype things about 6 months prior to release.