Yes, the high lines I do know.
First, there is the rename to Veeam agent for Windows
Second, there will be 3 editions: Free (like today), Workstation and Server
There is quite a big different between the editions and additional functionality is added in all three versions (so we are not cutting functionality in the free version, on the contrary, we are adding encryption as an example...)
But if you want to learn more about it, I advise you look at the specific video for the Veeam agent for Windows which can be found here: https://go.veeam.com/launch-event