Microsoft is apparently planning to release a Surface monitor in 2020.

BWW Media executive Brad Sams, the author of the "In Beneath a Surface" book, claims that Microsoft will release a Surface Monitor “in the 2020 timeframe.” The book is detailing the story behind Microsoft’s PC hardware.

"As I've also heard, Sams said that the next iteration of the Surface Pro, due in 2019, will be largely redesigned. Codenamed "Carmel," that coming Surface Pro device could include a USB-C port, smaller bezels and rounded corners like the Surface Go," Sams says. He said a new Surface Laptop, which potentially could run on an AMD processor, could hit next year. He also said Microsoft could bring a Surface monitor, something for which many users have been clamoring, to market in 2020.

Panos Panay had previously hinted that future Surface PC’s may be more modular – you can already swap out processing units on the Surface Hub 2 – and Microsoft has already filed patents for a modular Surface PC.

Sams' book also says that Microsoft is still working on the Project Andromeda foldable Surface, and that the company is planning an “ambient-computing” device under the Surface brand.

Microsoft is likely to deliver something bigger than a pocketable phone-size device if and when a dual-screen Surface device comes to market. But it is not clear whether this device will run a computer or a mobile OS.