In this, the second inning of interactive video, YouTube may just be in the best position to own interactive non-linear storytelling. This inning will feature 360 video with meta data. The bottom of this inning will provide fuel for 360 layering of interactive elements and make way for dynamic content…finally!
http://www.theverge.com/2015/3/13/8203173/youtube-now-supports-360-degree-videos