I was reviewing my experiences with my Assassin's creed games when this idea came to me. It may not be new so please bear with me.
I was thinking of the possiblity with a AC game DLC which consists of s series of short stories retold in gaming platforms, where the player gets to experience the decisions and actions made by assassins or their allies, whose sacrifices (whether selfless or otherwise) help safeguard the freedom of mankind in history.
These are relatively unsung heroes and have not yet received a video game like Altair, Ezio Auditore or Desmond Miles. The source material for Assassin’s Creed: Project Legacy may be a great way to start.
I thought of the working title "Assassin’s Creed: Sacrifices".
Since these short chapters hardly constitute a full game, they may be offered as DLCs, or bonus content.