By analyzing the latest Shield Experience software, the XDA Developers team has discovered that a new desktop-mode software feature is in the works alongside what appears to be a new hardware product. Codenamed "mystique," this device could be a 2-in-1 convertible that would compete with the Microsoft Surface Book and other similar pieces of hardware.
https://www.notebookcheck.net/Next-gen-NVIDIA-Shield-convertible-could-feature-a-desktop-mode.418988.0.html