It is very unlikely that AMD or Intel will do something that Nvidia does not! It has to do with the monetary system. It's about selling laptops that are good for one generation and then in the next generation everyone has to buy new laptops in order to have new laptops. Clevo was the last big manufacturer in the HIGH-END sector. Clevo has also submitted because they are forced by contract. Laptops like the P870xx or X170xx or P775xx were the best examples that it is no problem to develop something like this!
There are currently only soldered boards! I can hardly imagine that it will be any different in the medium term. The financial pressure is too great.
That was also the reason why I thought the idea of the MXM-PCIe adapter was so cool and developed everything. My electronic kit has been developed so far. I have currently made a 3rd version to test things out. On the whole, however, everything works stably. There are still a few things to test and redesign, but basically it works.
Theoretically, the CPU socket with adapter for 13th/14th Gen HX Intel can also be developed. That would be cool, but the 9900K/KS is still good for gaming. Besides, I don't want to venture into such an adventure at the moment, I'd rather finish the MXM-PCIe adapter first:-)