So they're basically doing what HP (now HPE) has been doing for like a decade. Awesome!
I do hope the CPU is on a daughter board too, because CPU upgrades to not create more ewaste would be fantastic and could finally make workstation laptops last more than 1-2 years.
Intel Core i9-11900 & Quadro RTX a6000 (I'm assuming they'll still call them RTX plus the 'a' designation for Ampere, like the past Quadros were named, like p4000 for Pascal) as the next gen, perhaps?
I really want a 15" with an i9 and an RTX 5000, with the ability to upgrade to an 11th gen i9 and Ampere based Quadro card next year. If they can make this happen, I'm on board!
But if it's just going to be the GPU that's replaceable, like how HPE does it, I'm less interested. I want CPU upgradability too, else I may as well just get a gaming laptop with a Ryzen 4800H and 2070 mobile which will cost half as much. No certified drivers, but my workload isn't 100% mission critical, so I can deal with GeForce drivers with Solidworks & AutoCAD.
Please, everyone, more modular mobile systems, both workstation and gaming!