On top of that, I also imagined that the main villain guys would be an AI network that would be pretty much the Patriots from MGS, who were created to keep humanity safe, and keep forcing wars between all the species on Earth since that what they were programmed to do, protect humanity from invaders.
You could use it to explain many things, such as no one knowing about the Crucible since they had that info censored, and most importantly you could explain that the Catalyst was just their attempt to deal with the Reapers, to insert an AI into them and take control of them, but was corrupted by the Reapers themselves, and make the motivation of the Reapers again something really vague and unknown, let them be the Eldritch monsters they've always been.
I've honestly been thinking way too much about this hypothetical sequel, about the entire plot, and I even thought of a concept for the boxart, and also thought up of soundtracks from other media for specific moments of the plot.
I don't know what made me so obsessed with this.