I thought of one:
“Reclaimer, when I indexed mankind for repopulation, I hid seeds from the Didact. Seeds which would lead to an eventuality. Your physical evolution. Your combat skin. Even your ancilla, Cortana. You are the culmination of a thousand lifetimes of planning.” -Librarian to Master Chief
What if they wrote a new one, involving the Master Chief’s ancestory? It’d be an interesting way to link this century (2000s) to the time Halo is set in.
The storylines could involve his ancestors, and their children, and so forth, leading up to the birth of the Chief in the 2500s. It could also involve every day issues which have eventual implications for the future that Halo is set.
Also, to a lesser extent, an added storyline of the people who created Cortana’s system over time, and the events causing this software to be created, etc. (or something more interesting…)
Either way, I think there’s potential here. The writers could also interweave the stories, going back-and-forth, even linking them up somehow?
Any others you guys can think of?