I know everyone wants more sex positions or choices and so on, I agree but I think the game really needs are minigames that help you our just make you gamble. After some point in the game you just have so much money that only thing you do is either trying to get more endings or grind on setting new records. Also my biggest suggestion is being able to move on to a better and mostly bigger house (even if its not a great suggestion) because living in the same house while being a multimillionaire is making me sick for some reason. Like it would be good to have your own kitchen where you learn new recipes and eat better dishes.
Oh and customizing our own character (gender, body parts, color, clothes) would be good too but its not that important.