Apple is expected to replace Intel chips, which typically provide MacBooks with ARM-based custom development. There are always rumors pointing in this direction. Although Apple has not confirmed that they are A-Series processors that can provide desktop performance, its partner (and rival) Qualcomm has already released a number of ARM processors running Windows ,
The latest is the Snapdragon 8cx, which was specially developed for use in notebooks. And that's the platform Microsoft could use on a future Surface laptop.
Zac Bowden of Windows Central said on Twitter that the latest surface codename to look out for is "Excalibur," which is supposedly powered by an 8cx processor:
A few months ago we saw at the Computex 2019 a Snapdragon 8cx laptop that should demonstrate 5G connectivity on notebooks. Of course, Qualcomm is also pushing its 5G chips, which power several of the commercially available 5G smartphones, including the Samsung Galaxy S10 5G and the OnePlus 7 Pro 5G.
At the time, Qualcomm was working with Lenovo on the "Project Limitless" device, although we have no idea when this laptop will start. Microsoft, meanwhile, is already working on dual-display and foldable devices with a foldable surface tablet / laptop for the first half of 2020. It is unclear if the Excalibur is related to any of these products. However, using a Snapdragon 8cx platform with 5G connectivity on a foldable device is very useful.
Intel chips have so far powered all Surface models from Microsoft. Many future Surface laptops will likely continue to rely on Intel chips, but the introduction of an ARM-based Surface from Microsoft would put even more pressure on Intel and signal to other vendors that Windows is a true alternative on ARM.
As Apple is expected to ship a new 16-inch MacBook Pro in the fall, though the laptop is likely powered by Intel chips. Other MacBook lines are also being updated, but there is no indication that an ARM-based MacBook will be launched this year.