Sorry but I think there's still a basic misunderstanding here.

Pages is not going away. It is not "sunsetting".

What is happening is, the implementation is changing to be more closely integrated with Workers.

At present most Pages features are available directly on Workers, but not quite all, but we're working on it. Hence, we're suggesting people use Workers for new projects, but we're not auto-migrating people yet. Once we're feature-complete we'll auto-migrate people to the new implementation.

But the "Pages" brand will continue to exist, as a more-integrated part of the Workers platform. pages.dev will not go away. We will not break anyone's sites. Everything you can do with Pages today should be just as easy if not easier on the new implementation.