Switch is the sole console missing out now on the
Demon Slayer: Kimetsu no Yaiba PS4 Game. This is jut a guess but it’s likely Aniplex and CyberConnect2 will also release the game on Switch sometime after the PS4, PS5, Xbox One and PC versions.
It’s also important to note
Kimetsu no Yaiba: Hinokami Keppuutan was not announced outside Japan yet. However, a multi platform release and a Xbox One release means it’s more likely than ever for a western release to come around. At the end of the day, there is no way the game won’t release outside Japan seeing the franchise’s incredible popularity.