Thunderbolt 3 and USB to Converge Under USB 4.0
Joe Rossignol, via Macrumors:
USB4 converges the Thunderbolt and USB protocols as part of Intel’s goal to make Thunderbolt available on a royalty-free basis, which should result in wider and cheaper availability of Thunderbolt accessories like docks and eGPUs.
The USB4 specification is on track to be published around the middle of 2019. Over 50 companies are actively participating in the final stages of review of the draft specification, which should include Apple, Intel, and Microsoft, but it might take a few years until the first USB4 devices are released.
USB4 is Thunderbolt 3. As such, I don’t think it’ll take as long as a few years before we see USB4 devices.