The game looks pretty good and promising, in addition Level-5 released some more information that you check below:
Characters from Each World Will Appear
Keita, Natsume, and Shin—the protagonists of the three worlds of Yo-kai Watch—as well as Jibanyan, Junior, Nekomata, and the yo-kai of each world will appear in the game.
Yokai-Watch 4 is the first entry in the series for Nintendo Switch. the game due out in Japan this winter.