On January 19, 2017 going to release in Japan on PlayStation 4 and Vita the next Valkyria game the Valkyria: Azure Revolution.
SEGA today announced the release of a Preliminary DEMO version which will be available in this December. The demo release on different days, on December 22 on PlayStation 4 and on December 26 on PlayStation Vita.

It should be noted that you can move the save data file into the final version of the game. If you are interested in the game, download the DEMO next week and after that (depends on the platform).