I looked around at the various Tech: threads and didn't see a good fit for this.

USB-C to hit 80Gbps under updated USB4 v. 2.0 spec
You’re going to need new cables and learn to recognize revised logos

The USB Promoter Group has announced version 2.0 of the USB4 spec and promises it can carry data at 80Gbps.

The Group’s announcement [PDF] of the spec is a little light on detail because the nitty gritty stuff will debut in time for developer events scheduled for November.

For now, we’ve been told that the spec will offer the following characteristics:

Up to 80Gbps operation, based on a new physical layer architecture, using existing 40Gbps USB Type-C passive cables and newly-defined 80Gbps USB Type-C active cables.

Updates to data and display protocols to better use the increase in available bandwidth.
USB data architecture updates now enable USB 3.2 data tunneling to exceed 20Gbps.
Updated to align with the latest versions of the DisplayPort and PCIe specifications.
Backward compatibility with USB4 Version 1.0, USB 3.2, USB 2.0 and Thunderbolt 3.

80Gbps is plenty of capacity, but the spec isn’t designed to devote it all to a single connection. Instead the plan is to share out the 80Gbps among different devices connected to a hub or dock. Which is a worthy outcome, given that system builders are increasingly offering PCs with just a couple of USB-C connectors that are suggested as the way to handle video and external storage, a decision that all-but-necessitates the acquisition of a dock or hub.

There's more at the link.

There are many more tech topics than cables, but this is a good starting point for this decade.