On March 16, 2017 going to release in Japan on PlayStation 4 the new Senran Kagura PEACH BEACH SPLASH. From today (December 22) you can book the DL version of the game and if you do it until March 15, 2017 you will get extra in-game gifts.
Those who pre-order the game will gets a hawaii style one piece custom for each girls with extra skill card. If you are a PS Plus user you will also get the polka dot style Iso clothes which will be available between April 5 and May 9, 2017. Pictures can be found in the gallery and you can book the game in here: https://store.playstation.com/#!/ja-jp/cid=PN.CH.JP-PN.CH.MIXED.JP-CATEGORY00000766