"There is still a huge appetite for more material, recordings and all things Bowie. It's a perfect time to release some.
"Obviously they want to be careful to keep to stuff they feel David would have approved of."
It was also recently announced that Bowie's lost 2001 album Toy will be released later this year.
He had "revisited" his past material for the record, combining new tracks with updated versions of tunes from 1964 and 1971.
The collection will be released on November 26, including revisited gems like his debut single Liza Jane as well as Silly Boy Blue and You've Got a Habit of Leaving.
The Toy box set will also come with an unplugged collection of 13 songs from the album.
The late music star's estate also recently landed a deal with Warner Music Group, with the label now owning the rights to Bowie's whole back catalogue, apart from his pre-1968 recordings.
The label already owned the rights to Bowie's music released between 1968 and 1999.
And the Sony-released records Heathen, Reality, The Next Day and Blackstar will also be housed with Warner Music Group from 2023.