The Legend of Heroes: Trails of Cold Steel III is out on Switch, with IV coming next year, and fans of the series need not worry about the other games.
Clouded Leopard Entertainment has announced that The Legend of Heroes: Trails of Cold Steel I and II are both heading to Switch in Japan.
The games are due out Summer 2021., with the first game coming June 2021, with the second following in July 2021.
Sadly there is no word on localization at this time.