Many of the games I enjoy single player wise are linear stories, but not all. Some have branching dialogue trees or different paths, like Life is Strange, any Elder Scrolls game, or Telltale games. Some like Halo (my personal favorite), The Last of Us, any of the Tomb Raider's, Assassins Creed's or a recent obsession Horizon Zero Dawn are linear narratives. Some also have small sides stories and some are straight forward cinematic experiences. For those linear games, what do you want to see improved on as the game industry, and interactive writing, advance? Do you want less exposition dumps and more player exploration to uncover mysteries? Do you want better voice acting? Stronger, more natural dialogue? For me I want all of that. I want quick time events/interactive cutscenes that don't take away the challenge of boss fights. Furthermore, I'd like to see better written villains. Some games are more of a "power trip" than an emotional journey. And that's perfectly fine. But some titles lack a quality antagonist that fits nicely as the opposite of the protagonist. On that note what about a balance of a "power trip" and a serious tone? I bet there are games that already do that; I just haven't heard of them.
Lastly, what sort of experimentation should game developers and writers do? More risk taking or strengthen known genres?