Koei Tecmo Games announced the next closed Beta test date of the upcoming Nioh PlayStation 4 game. You can sign-up to be a beta tester from today (August 3) until August 10, 2016 on the following page: https://www.gamecity.ne.jp/nioh/
The testers will be notified via E-mail and you can test (if you are lucky) the game from August 20, 2016 for a day! The Beta client will be available from the PlayStation Store and it should be noted that you can’t move your save data file from the previous Beta test version so you have to start everything again.
The release date of the new Nioh still unknown. Only known that Koei Tecmo Games going to release it in 2016 Q3/Q4 only on PlayStation 4.