Huge list incoming
RPG Stats system similar to GTA San Andreas but fitted for the west. Stealth, Dead Eye Skill. Gun Skill, Melee Weapon Skill, Bow Skill, Horse Riding, Stamina, Muscle and Fat. Infamy and Fame, Respect. Swimming Skill. Sex Appeal lol
The Ability to Swim, it was funny to see we couldn't in the first game, maybe people back then couldn't lol.
The Ability to Crouch not a hunched over stealth like GTA 5 and go Fully Prone
Bring climbing back please
Dual Wielding which looks to be true if you look at the characters with double holsters in the official game poster
Focus more on Singe player than Multiplayer via DLC content etc
Over 100 Story Missions. RDR only had 57 missions GTA 5 had 69 missions
Interesting and Fun side missions and Heist missions
Huge and varied map thats not lifeless like GTA 5 was with plenty of things to do and varied locations and interesting populace, give us a reason to unlock and explore.
Tons of interiors to make up for the wilderness aspect
Improved Physics engine similar to the first Red Dead Redemption and Max Payne 3
Economic system, buying properties and land, farms etc think bartering maybe start an empire with your gang
Whores and Sex, John is not a married man anymore lets have some fun.
Tons of clothing customization for you and your horses and guns, houses and gang hideout if possible.
Gang mechanics and Respect system, civilian reactions and respect as you or your gang get more infamy or fame, recruit more gang members in single player or multiplayer.
Gang Wars and Turf system in Multiplayer and Singleplayer with other rival gangs. We had this in GTA SA and a little bit in RDR, so no excuses.
Better Combat system involving melee combat with different combat styles and melee weapon styles like in GTA SA and GTA 4. Hitting people with your gun butts.
The Ability to rapidly fire a revolvers whole 6 shot barrel in seconds. Fanning the Hammer essentially without Dead Eye Mode. don't know why you couldn't do this in Red Dead Redemption. Loss of accuracy but deadly in close encounter situations.
Casinos gambling card games drinking tons of mini games, tons of activities to do.
All the weapons you can think of.
Improved Blood and Gore. This is the wild west it has to be gritty
If we play all 7 gang members, make it interesting. but i would prefer just playing John again.
Relationships with female characters. we had this in GTA SA and GTA 4 but make it relate to the story please, make it real and a Female Main character.
New and more wildlife and domestic animals. maybe make a rug out of them lol
Improved Crafting System from Red Dead Redemption, Make Ammo and Arrows, Fire Arrows, Poison Arrows, repair and upgrade weapons etc. use the resources of the world and animals to improve your gear and weapons, horse gear.
A world and population that notices changes, yourself and the effects you and your gang have on the world.
The Ability to rob and takeover, civilians, homes, hold up towns, ranches, banks, trains, held people for ransom etc, all the things outlaws and gangs did back then.
Improved Weather System and Graphics, Animations and Weapon Sounds.
Good voice acting, maybe an All-star celebrity cast. I would love to see some great actors. Rockstar has the money for sure!
Interactions with Civilians and Main Characters and Horses like we had in Bully. Whether it be good or bad or downright hilarious. Makes the world feel less empty when you can interact with them more besides just killing them.
Police that don't shoot you immediately if point your gun at them like in GTA 5 and try to negotiate with you or your gang if possible during a shakedown, robbery or ransom, hostage situation, town takeovers.
Better AI and more reasonable Police that don't just shoot you like mindless animals.
The Ability to Payoff, bribe or threaten law enforcement or anybody that talks. an Improvement on the Bounty and Law system in the first Red Dead Redemption.
More curse words and vulgar or racist language this is the wild west, no Political Correct bullsh*t here. it would be funny as f*ck too and most importantly real. Think of a Tarantino western movie.
ill add more later. To keep it brief, no dumbing down please, keep and improve on what already worked in Red Dead Redemption, remove or improve on what doesn't and add more to the game. Focus more on Single Player than Multiplayer because that's what we ultimately come back to in a Rockstar game, when it comes to replayability. They can incorporate other ideas from other Rockstar games to make the perfect game. I know i can't get everything i wan't but i hope some of these ideas make it into the game. Sorry for the long list i have a huge imagination lol.