Some more information has been uncovered about the upcoming iTunes changes answering some of the questions people had.
The Music app is basically iTunes—but with a design update that puts Apple Music at the fore. You can still see your entire music library, of course, and even buy music on the iTunes Store if you want to. As someone who uses iTunes with Apple Music every day, I’m okay with this change. And if you click on the Songs view in the Library section of the sidebar, you will get your classic iTunes song list back, like it never left.
Apple told Ars Technica that on Windows, there will be no changes. Those who use iTunes on a PC to manage their devices, listen to music, and make iTunes purchases will be able to continue to do so.
What about the syncing features of iTunes? macOS Catalina builds them into the Finder. Attach an iOS device to a Mac and it appears in a Finder window’s sidebar. Select it and what looks like the standard iTunes sync settings screen appears in the window. You won’t get syncing or management of iOS apps, but you’ll be able to back up, update, and restore devices from the Mac.