It's interesting that the MC is almost neutral; she (not Executor 03) isn't part of the human defense forces, nor is she part of the robot armies; it could be an interesting possibility if she does win against the present-time boss and Ka'More, and have to lead the robots' defense against the humans, or if the humans "win" against the robots, which will have ultimately meant that they failed to coexist out of fear and intolerance; only one side got a satisfying ending; perhaps, this might even be what happened in the previous wars.
I wonder who was the one who gave 02 the soul cores, and why would he have conditionally killed 03. Could the original Qiqi have somehow been kept alive through all those years, or someone else have browsed through her diaries? (especially her last phrase)