Officially called Star Ocean 5: Integrity and Faithlessness, the game is being developed by Tri-Ace and published by Square Enix.
Set on an uncivilized planet called Fakelead, 6,000 light years away from Earth, the battle system will be seamless and take place in real-time.
http://www.ign.com/articles/2015/04/14/square-enix-teaser-site-now-looks-less-like-star-ocean