Following last week's delay announcement, Level-5 has updated the official website of Yo-kai Watch 4, sharing more details and various pictures!
Yo-Kai Watch 1 for Nintendo Switch - New screenshots : r/NintendoSwitch
Yo-kai Watch 4 Official Site Update - New Yo-kai, Gameplay Details (x-post from /r/yokaiwatch) : r/nintendo
Yo-kai Watch 4 new details and screenshots
Yo-kai Watch 4: more details and screenshots from the official website - Perfectly Nintendo
Nintendo Switch Yo-Kai Yokai Watch 1 Level Five Japan Import
Yo-Kai Watch Blasters: Red Cat Corps & White Dog Squad Review (3DS)
Yo-kai Watch 4 - plenty of details, more screenshots, The GoNintendo Archives
First Yo-kai Watch 4 screenshot, character art
Yo-Kai Watch 2 Review (Nintendo 3DS) - Official GBAtemp Review