According to Blake, the follow-up to 2013's Overgrown is already halfway finished, and will include collaborations with Kanye West, Justin Vernon, and a mysterious third collaborator who he didn't name but is "really excited about".
http://pitchfork.com/news/55587-james-blake-halfway-done-with-new-album-collaborating-with-kanye-west-and-justin-vernon/
