Carry the notes on a rejected file into the related revision work.
Add review requests to the writer's draft task with the chat link.
Your writers see changes requested in chat on the revision task they already use, with a link back to the review discussion.
Pass page proof corrections to the maker with the reviewed PDF.
Your maker gets the fixes in the review task, tied to the PDF version your reviewer marked up.
Move rejected page proof notes into the designer's revision task.
Your designer gets the changes reviewers requested, tied to the rejected file version, with a link back to the approval.