The new NVIDIA Turing architecture may be coming to laptops soon. Listings on the GPU maker's website and on GitHub specifies a "GeForce RTX 2080 Mobile" with device ID and model number included. It suggests that this GPU will be available for non-desktop boards soon.
https://www.notebookcheck.net/Turing-going-portable-Mobile-version-of-GeForce-RTX-2080-spotted-in-leak.328790.0.html