The western release was previously only dated for a general 2018 release window.
In Japan, the PlayStation 4 version is due out on March 22, and the Switch version this summer. An Xbox One version will not be released.
In related news, Sega has also launched the English official website for Valkyria Chronicles 4. It currently contains information on the game’s world, characters, and systems, as well as the first English screenshots. View those at the gallery.