SEGA just announced Valkyria Chronicles 4 for 2018 release.
Valkyria Chronicles 4 is the 4th mainline Valkyria Chronicles game and it will be the third mainline one to be localized. Valkyria Chronicles 3 on PSP was never localized. We did get Valkyria Revolution though. Read my review of that here. Valkyria Chronicles 4 will be released in North America and Europe in 2018 on PlayStation 4, Xbox One, and Nintendo Switch. Watch the announcement trailer below:
Valkyria Chronicles 4 will release on PlayStation 4, Nintendo Switch, and Xbox One in 2018.
Source: God is Geek