The existing high-performance ThinkStation P series is not expected to have any major redesigns as the announcement relates only to the inclusion of Nvidia RTX. Applications ranging from university research to major game developers like Epic are just a few example clients who rely on ThinkStation products.
https://www.notebookcheck.net/Nvidia-Quadro-RTX-series-is-coming-first-to-Lenovo-ThinkStation-desktops.361081.0.html