This upcoming title in the Valkyria series called Azure Revolution is releasing on the PS4 and Vita in January 19th in Japan. Red’s 3rd Dimension Gaming was able to upload the JP gameplay trailer that released on his channel, so if you want to see this title in action, consider watching the above video.
It shows off the main hub of the game, a bit of how the combat system works and some story content (if you understand Japanese).