"unfold into" is correct and usable in written English.
You can use it to describe a progression or development of a situation, event, or story. For example, "The heated argument unfolded into a violent confrontation."
Stay with one, and it will unfold into a meditation on birth, death, longing or loneliness.
What appear to be drawers under the plastic-topped table unfold into -- presto!
"I saw my life unfold into something richer and fuller than mere sex and athletics.
It is now Taliban-infested.Nearing Tank, a town swollen with Mehsud refugees, the hills unfold into a large dusty plain.
But she manages in one four-minute, slow-motion scene to unfold into a voluptuous, confident woman.
With a classic stripe painting such as Apres-Midi (1981), the stripes seem magically to unfold into depth.
The book opens with an image of card-catalogue drawers that unfold into six hundred and seventy tiny photographs of Oxford's residents.
Travel cuddle class: Economy-class airplane seats that unfold into a bed or couch, as proposed by Air New Zealand, which calls them "Skycouch" seats.
As for the brand-new suburbs, the ones beyond Bethesda and Scarsdale that unfold into land that 15 years ago was undeveloped, there is enormous diversity.
Mr. Voinovich's novels not only satirize life in the Soviet Union, but also unfold into philosophical meditations on the venality, hubris and folly of the human condition.
The pop-out section, deployed on the passenger side at the push of a button, makes room so that the sofa can unfold into a queen-size bed.
