The 13.3-inch foldable notebook from Lenovo was recently spotted at an event in Barcelona, and it looks like Lenovo is just waiting for Microsoft to finalize the Windows 10X OS specifically designed for dual-screen devices. The hardware good to go, so, with a bit of luck, we might be able to test the foldable notebook next summer.
https://www.notebookcheck.net/Lenovo-s-foldable-Thinkpad-X1-notebook-expected-to-launch-by-Q2-2020.439806.0.html