On August 25, 2016 going to release the Catalog No.2 DLC package for the Idolm@ster Platinum Stars PlayStation 4 game in Japan. The DLC going to includes new costumes and three new songs for the game and Bandai Namco introducing everything in the today released promotion video what you can watch above.
For more information about the DLC package please click here: http://platinum-stars.idolmaster.jp/dlc/catalog02.php