Yo-kai Watch 4 released June 20th in Japan and it looks like it’s gonna come to the west. While every mainline game has come to the west there was no confirmation that this one would until today. During a Level-5 panel at Anime Expo it was confirmed that a localization was in the works.
Yokai Watch 4 western localization announced at the Level-5 AX 2019 panel. No photos or videos allowed at panel. Coming to Switch; no release date announced.
— HDKirin @ AX 2019 (@HDKirin) July 5, 2019
At the same panel it was said that the game has content that requires watching specific films in the series that have also not been localized. Nothing was said about releasing the films in the west, but interest was shown in doing so.