Red Dead Redemption 2 has nearly passed into lore and has been accused of being vaporware by more than a few gamers over the years. The game was originally talked up with the first trailer back in October of 2016 with the promise of a 2017 launch.
That 2017 launch never happened, but we did get the second trailer for the game in September

Source: Hot Hardware – Red Dead Redemption 2 Trailer Features John Marston And It Looks Awesome