I believe, that in the first paid DLC for Halo 5, there should be a new series of mini-missions. These missions would be similar to the Spartan Ops missions introduced in Halo 4, but would follow the civil war between The Swords of Sanghelios and the Covenant. It would take place between Halo 4 and Halo 5. I, personally, would enjoy learning more about The Swords. You would play as Arbiter and N’Tho Sraom throughout these courses.