Oh yeah, saw some of the clips online. Looks very similar to GTA V, but I noticed there is a lot of features in RDR2 here. Like when you rob a cluckinbell or whatever, you can steal money from everyone inside. Similar to how they did it in RDR2 when you rob trains.
Another thing I saw was how cops react to you. They don't just start shooting at you right away, instead they will slowly come at you like in RDR2. And I assume maybe it will use the witness system too where if someone sees a crime, they'll report it, but they also need to see you doing the crime in order to pin it on you. I'm going to guess you can stick up anyone in the game world.
As for the game, it's still early, but what they have shown looks promising. I'm curious to see more though, hopefully they reveal the game in the next year or two. I can't imagine it's too far off yet.