Books still provide the storyteller's guiding constraints, including the length of the end product, how readers will interact with the product, and a host of other considerations about what storytellers can or cannot do. Too see what an impact new technology can have on how stories are told, it's more instructive to consider movies than most of today's computer software. Movies put stories into a package that is quite different than the book. Over the past 70 or 80 years, it's been interesting to note how the concerns of those who make movies have grown to be quite different than the concerns of authors. Visual cues in movies provide a world of ways in which movie makers can accent their stories that are just not available to the authors of novels.
Sound cues plays a similar role, though perhaps one that was best developed in the old radio shows.
If you judge by how the public likes to consume its fiction, such freedom allows artists to make movies more compelling than novels. Still, movies will not eradicate novels since novels give their authors an ability to play with language that is just not available to movie makers. That's a good thing, too, since novels have the advantage of being relatively cheap to produce. Many more artists can afford to have a shot at producing an important new novel than a new movie. Computers, like movies, provide another form in which to package stories and like movies, this form needs to evolve.