Although Taiko no Tatsujin: Nintendo Switch Version! has already been announced for an English Asia release, the game may be coming to the West properly very soon, as a rating for Taiko no Tatsujin: Drum ‘n’ Fun! has been found on Australia’s rating board. [Thanks, Resetera!]
Taiko no Tatsujin: Drum ‘n’ Fun! is coming to Nintendo Switch, hinting at an English version of the game coming out for Nintendo Switch in Japan. However, the previous official release, Taiko: Drum Master, replaced the Japanese songs with Western songs such as ABC by The Jackson Five, so whether this one will have the same song list isn’t confirmed. You can find the rating here.
Taiko no Tatsujin: Nintendo Switch Version! releases the Nintendo Switch in Japan on July 19, 2018. The Southeast Asia version launches on August 9.