That’s right! If you follow this page you’ll see an FAQ where we will continue to add more and more information about the transition:
https://orion-docs.prefect.io/faq/#relationship-with-other-prefect-products.
In a simple sense, think of Orion as combining both Prefect Core and Prefect Server into a simpler, more performant, straight up better package. It will always be open-source, as well as forming the basis for our commercial platform.