Finish up side quests that you couldn't complete as Arthur, and find easter eggs that connect RDR2 to RDR1.
Yeah, that's what I figured. I'm hovering @ 89-90% completion right now.
My limited thoughts (PS4, single player):
* Beautiful game. I had 2 different people in the house ask me why I was watching a Western.
* Depth of story/emotion was
* Gameplay sucked at times. From my horse twisting in circles when I'm directing him forward, stepping on random pets/people, etc. I don't for any reason understand why the 'talk' button is also the same as the 'aim and shoot a mufakka' button. I shot more than one person on accident in the beginning.
* Sh*t got mad repetitive. It would be interesting to see how many hours of my gameplay was spent skinning animals. I get the hyper realism, but give me a fast forward button or something. Also, I spent the entire RDR1 collecting a zoo of animals (to get 100%). Outside of the Legendary animals here, I haven't spent time trying to get many/them all.
* With that said, I still really like the game and it gives me something other than Fallout to just sit back and play for an hour or so to kill time. It's easy to pick up wherever and find something to do.