story development

If you played Halo 2, Bungie put a side-story/ story development where you played as the Arby(arbiter) as his elites revolted against the prohits. If you read the books, the books tell u about the Master cheif’s blue team: kelly, linda, fred. It also mentions spartan 3: lucy, ash, and the rest living 3’s. I believe they ( 343) should at some point in the trilogy make a side/main story about the remaining spartans to introduce us to them and to get to play as them instead of the master cheif( no offense toward him at all). Please feel free to reply and tell me what yall think