As of currently the game is under maintenance; the image on the right notes that the game is free to play, but does include in-app buyable items.
The title screen is shown below:
There is also a new promotional video:
UPDATE: The game is live!
*Be aware that there may be device and/or region limitations if you try to download this game, and as of currently it is only in Japanese. No news has been posted by other Bandai Namco divisions on releases in any other region.