According to The Verge, Apple passed a patent that shows that Apple Pencil will work on the Magic Trackpad. This also means that iMac may support touch handwriting in the future.
USPTO/mashable
What is more profound and famous is that this patent was initiated in 2014. According to U.S. Patent No. 9,400,570, Apple has obtained the "pressure sensing" of the stylus pen and the "inertial sensor" patent on both sides of the pen. According to speculation, this may be to allow the user to switch between different modes. .
The Apple Pencil was released in September 2015 as a configuration for the iPad Pro. Because the stylus and Jobs did not match the concept of their lives, it also caused some controversy when it was released.
The Mac family currently supports keyboards, mice, independent touchpads, and Siri on the road. If you add Apple Pencil, Mac's interactive means will be even more abundant.
Although there is no direct evidence that Apple will launch devices that support Apple Pencil in the future, this answer has already been made.
Via The Verge & mashable