It's happening. The Halo television show that Microsoft and Steven Spielberg have been talking about for five years is actually heading into production in early 2019. The show's working title is simply Halo and details about the plot are scarce, though it'll feature the franchise's classic storyline about a futuristic war between the human race and enemy aliens known as the Covenant. Showtime has ordered a 10-episode season of Halo, and episodes are set to be one hour long.
Source: Xbox Wire