Assume AI develops to the point where you can just tell it to make a game with your parameters or you're a billionaire who can self-fund a dev team without having to bend the knee to anyone. No limits or restrictions on what game you can make. What do you make?
I think I would do a GTA/Saint's Row style game, but with themes based on Death Wish. You've got a city with a gay hippie district, then various portions of the city are black neighborhoods, jeets, mohammedans, etc. You play as a White guy who has some tragedy that sends him into a vigilante quest Death Wish style where you do different missions in those neighborhoods, and as you play, you slowly begin to drive them out and gentrify the neighborhoods. Disrupt enough black gang activity in their portion of the map, burn down some drug houses, etc and they start leaving and White families move in and clean it up. Burn down enough Mosques and take down terror cells in the mohammedan section, and they are driving out and Whites move back in and so on.
Other White guys start joining your cause as well as you progress and turn your crusade into a movement. Could start out with the police being an antagonist too, as they would be, but as you start taking territory, maybe work in a political angle that sort of replaces a diverse city council with more and more White men as you play and take ground, and you see more White guys as cops who start being less hostile to your activities and start looking the other way. Missions where you have to rescue kids from the mohammedans or faggots, some missions outside of the city where you take out Chicom owned farmland where they have weapons and drones in secret storage and big drug farms. Hell, maybe there's a Little Tokyo or Little Koreatown section of the city that is neutral to you if you wanna go that way. Some kind of communist trained "community organizer" type mayor as the Big Bad you have to face near the end, in the heart of the Antifa held faggot downtown district to cap it off.
Obviously no company on earth would spend 5 seconds developing such a game, but if you could do it yourself and just release it out into the wild via torrents or something, I bet it would get some traction.
I've always thought the setting and trappings of Arcanum was not explored enough. That needs combined with System Shock 2, Alien Isolation, Hunt Showdown and while we're at it Gears of War.
So a single player, real time, squad tactics, semi fantasy steampunk RPG FPS. Squad members programmable with a fully codable priority system and customizable with different items and weapons, but never directly controllable. Enemies fight with advanced AI, bifurcated storyteller control systems and detailed callouts to each other, including an advanced, 3-dimensional binaural audio system.
Zero ambient noise unless it is actually generated by something in the world near you. If you hear clanging, it's because there's a wrench jammed in a generator. If you hear a crackling hum it's because there's a magic crystal device nearby. Hear pained moaning, there's a zombie somewhere.
Conversely, the noise YOU make is audible to everything else in the world. Weapons have unique sound profiles based not only on what gun you fire but what ammunition you're using. Fire a gun? Enemies and neutral NPCs can hear it, and depending on their programming might investigate or call for backup, or seal off doors.
And Arcanum's Magic vs Technology system. The further you go down either path, the less compatible the other becomes. Technology relies on the rules of reality, magic breaks it. So spellcaster might not be allowed to ride on a train at all, and if they are they get to be in the caboose car as far away from the engine as possible. While someone loaded down with technological gear and enhancements wouldn't be able to so much as light a candle with magic.
Open ended level design combined with large branching objective pathways, ala Deus Ex, helps to flesh out the branching paths and potential skills/traits/items you might pick up. Many tools available to the player, and when you're dropped into the level it's "here you go, figure it out".
All items are interactable in real time, including the maps as physical game objects. Want to place a marker on the map? You're putting an actual x on it with a grease pen.