"narrative shift" is correct and usable in written English.
You can use it when you want to refer to a change or transition in the narrative voice, structure, or theme in a story, essay, article, or other text. For example, "The story's clever narrative shift from a comedic tone to a serious one surprised the reader and created a powerful emotional response."
The two of them, along with Rick Davis, talked through this rather jolting narrative shift.
Let the narrative shift so that our patients and families can make informed choices.
Still, as much as Birk loves football, he is also aware of the narrative shift in regard to concussions, of the toll and damage that repeated hits take on veterans who have endured a similar number of collisions.
Then again, Special Correspondents is ultimately less a character piece and more a message movie, thanks to a narrative shift that refocuses the film's attention on the evils of contemporary slacktivism (a bete noire for Gervais).
(Incidentally, King has said that he "wrote [himself] into a box" when working on Christine, putting Dennis in hospital, and that the narrative shift was the only way out of that, which sounds suspicious to me: I can think of a number of ways to solve that particular narrative pickle).
On March 24, they will take to the streets of Washington DC to demand that their lives and safety become a priority and that we end gun violence and mass shootings in our schools today….Their bravery and persistence in speaking up has caused an important narrative shift in the gun-control conversation away from politics and towards people.
It was a strange outing, interesting for its narrative shifts, and not for its spectacular play.
Mercurial as its protagonist, the narrative shifts from whodunit to romance to revenge tragedy.
Midway through the show, the emotional narrative shifts when this flamboyant star, alone onstage, pauses to deliver a short monologue.
And all the while mothers are bearing the additional load of a social narrative shifting men away from domestic responsibility.
The narrative shifts between those inside the dome and those outside, as the two worlds inevitably come together.
