There's room in this world for Half Life 2/Bioshock/Metroid Prime as well as Metal Gear Solid, Okami, Heavy Rain, Shadow of the Colossus and Limbo. Nothing needs "improving" in terms of what kind of story presentation style gaming takes; there's just different ways of doing things and all can be excellent if the core elements of storytelling are well done, and even THAT'S subjective based on the object of the game itself. Cutscenes, QTEs, first-person views, minimalism, what have you, what form the story takes is irrelevant as long as the emotions are conveyed.
(incoming rage)
I'm so sick of hearing how gaming needs to "be itself" and "quit copying movies/books/whatever" and other crap; it already IS itself as a result of being an amalgam of so many other media forms, with the element of interactivity and fun. I'm sick of Half Life 2 beign brought up as this thing that every game story has to strive to be. I love that I can have desolate, quiet, first-person Tallon IV right next to busy, chatty, movie-wannabe Kamurocho on my shelf, and they don't have to compete for my attention because I love both equally on their own merits.
If you MUST talk of "improving" things, let's talk nitty gritty details, not bring up some old ass game as an example of what the industry needs to "evolve" into, because no, Half Life 2 is NOT perfect, and it's not the only way to tell a story in a game.
Though none of that (or any of what I said at all, honestly) matters at all because in the end, much like movies and music and books, those who want to be SRSBSNS about the ART! of gaming will do what they want, and those who want to do nothing but blow shit up will do what they want, and EVERYONE WINS.