I’m ordering the day the Thunderbolt expansion card becomes available. I just can’t make use of a laptop that I can’t plug my eGPU into.
There are people in that thread saying they've run egpus off it.
USB-C is a specification and Thunderbolt is a certification. They are in process on the certification.
The processors they use support Thunderbolt and people have been using Thunderbolt accessories with it (you can see that in the forum).