https://www.polygon.com/2018/5/31/17413564/elite-dangerous-beyond-chapter-two-update-launch-date

Elite Dangerous: Beyond will get a second chapter on June 28, continuing the story of the Thargoid incursion into human-controlled systems of the Milky Way.

Beyond, which began February 27 with the first chapter, represents the third season of content for Elite Dangerous. It’s free to all players and will release simultaneously on PlayStation 4, Windows PC and Xbox One.