I’m nowhere near needing the answer to this question, but I’m still curious.
When an author is working their way through their agent or editors revision notes, should they only make changes to the parts that have been marked up? Or can they/should they add in new elements they were suddenly hit with the inspiration to include? Can they add in a sub plot, a character flaw, a world-building description etc, or should they just stick to the revision notes and leave everything else alone? I could see how adding new stuff could get messy, but on the other hand, they could possible add more sparkle.
Did the rodent wheel need a good workout?
You let it sit, unrun, too long?
Why you're even thinking about this right now just underscores that writers will think about ANYTHING to avoid thinking about the novel they're working on.
To answer your question: this is entirely dependent on where you are in the editorial process.
If you're doing revisions based on my comments before I send your work on submission, I'd rather have the most fully developed polished sparkly manuscript I can get.
Applying the notes to all of the book is generally a good idea.
When the book is on submission, but not acquired, and you're asked for an R&R, ASK YOUR AGENT. She'll know what the editor expects and can advise you.
If the book is sold, and your editor has sent notes, ASK YOUR EDITOR.
And if the book is sold, and you're marking up the galley proofs:
Marking up galleys is not the time to revise the book (generally).
But again, you're thinking about this to avoid thinking about something else.
What is that something else?
Fix that, and you'll be better off than listening to me yammer about Events Yet To Be.
|"That hamster looked tasty, where did it go?"--Her Grace The Duchess of Yowl|