I really don't think the prequel movies are going anywhere, on the film side of things. Earth probably won't explicitly mention them (and who knows, might overwrite them), but the prequels are totally baked into the future of the film franchise at this point. Romulus is contingent upon their existence, and we know now that a Romulus sequel (which is almost certainly the movie that Ridley is referenced as developing here) is coming, and that Fede has even entertained the thought of folding David into where Rain's story goes next...