An Intel executive has reportedly uploaded a photo of a slide pointing to very interesting developments in data transfers over USB type-C by accident. The material allegedly points to speeds of up to 80 gigabits per second (Gb/s), which will, furthermore, be supported by physical-layer technology.
https://www.notebookcheck.net/Intel-will-double-the-speed-of-Thunderbolt-4-in-its-next-gen-USB-type-C-technology.553116.0.html