There are rumors that are saying that the supposed second Red Dead Redemption game might be a prequel.
This was according to some discussions on Reddit where user AnonDN1978 claims on his theory that the second Red Dead Redemption game will take place twelve years before the events on the first Red Dead Redemption. AnonDN1978 even assumed that the supposed title for the next game would be Red Dead Redemption 2: Legends of the West, the user also added that the protagonist may not be John Marston and could be a different character, this also could debunk the previous rumor where John Marton?s son; Jack Martson will become the lead character.
There would be also three additional characters to be introduced to the rumored game, where the first two characters would be Irish and Seth, the Irish character is said to be a Kansas City bank teller while the Seth will be an Ireland native who migrated to America. The two will be hunting for hidden treasure where they will eventually meet in Tumbleweed, Texas. The third character will be created by the players, and will be some sort of gun-for-hire. The game might even introduce a multiplayer feature called the Gang mode.
It is still unsure on when the rumored prequel will be released or even announced, as there were no hints or whatsoever from Rockstar Games of any indication that they will be announcing Red Dead Redemption 2. Though Rockstar Games will be handled by Take-Two Interactive, who also owns the 2K Games publisher.
In regards on the development time, the game is already in development for 3 and a half years, and might have a release date of March 2016, so we might expect some announcements of the next Red Dead Redemption game anytime soon. But for now these are still rumors and take these information with a grain of salt.