Dell has refreshed the XPS 13 2-in-1 with Intel Tiger Lake SKUs with Xe graphics and Thunderbolt 4 connectivity. The new 2020 XPS 13 9310 2-in-1 is also Intel Evo-certified and offers pretty much the same chassis and thermal design as its predecessor including the inability to upgrade RAM, storage, and the Killer AX1650 Wi-Fi 6 card.
https://www.notebookcheck.net/Dell-XPS-13-9310-2-in-1-gets-refreshed-to-include-Intel-Tiger-Lake-Xe-graphics-Evo-and-Thunderbolt-4-but-RAM-and-storage-continue-to-be-non-upgradeable.496068.0.html