Holy geekgasmic! During the Xbox One unveiling, the amazing Steven Spielberg made a cameo to announce he would be working with 343 Industries to bring forth an all new Halo television series!
Spielberg’s role in the project is still unknown, when the series will come out is unknown and even the scope of the series is unknown. So all we really know is that a Halo series is coming and Spielberg will somehow be involved, most likely as a producer.
When we know more, you geeks will know more.