Its really necessary RDR3 story ? Because go back more in the past, can make this repetitive, and go to the Jack life don't make sense for me, because the old west is almost over, Rdr goes in 1911, Jack kill Ross 1914, old west ends 1920. I think the better way for the Red Dead games its go to another story, they have a giant world to explore, RD Revolver is about Bounty Hunters, RD Redemption is about a gang, maybe they can go back to the civil war, or anything like this. This is what i think. But i like your your ideas and the post theme.