Given how often people ask to be able to replay a scene, what about this:
"Core Memory"
This feature would be for Steele to reminisce about past events - certain events would show up as "core memories" (a la "Inside Out") and Steele could remember them.
Implementation-wise, this would require a scene that could be a core memory to be able to save all the state variables the scene depends upon (perhaps this could be automated with a tool for developers - scan a scene, identify the parser variables accessed, and generate code to save them). Ideally, as the scene first plays out, the player's choices are also captured, so that on replay the scene is played out exactly as before (to prevent strange events where the player chooses differently and that changes the outcome). Alternatively, "what if" might be allowed, to allow the player to explore paths they didn't take.
Obviously this would require modification of existing scenes, so not every scene would be able to be so saved.
OR, perhaps simpler and easier: allow tagging a scene start so that an automatic save is made at the start of the scene. After the scene, the player may choose to move that save to a file save, to allow the player to replay the scene from that point.