Today Sega lifted the veil on the latest Ryu Ga Gotoku game in the series, heavily rumoured to be the 6th main installment in the series Sega have performed a swerve and announced Ryu Ga Gotoku 0.
Details are sparse and more is to be announced at the Tokyo Game Show in September, the website for the title has a brief teaser but as I stated there isn't really any information about the title at the moment. The Game is to be released on both the Playstation 3 & 4.
For more information hit up this link.
As of yet there is no release date for any region, naturally this is due to change but no word on a western release as with 5 & Ishin