To answer my own question,
If you have ever finished a chaptered fic, did you do a revised version of it? For those of you who are in the process of writing a chaptered fic, do you think you'll do a revised edition?
I do plan to write a revised edition of my fic. I'll have the benefit of hindsight over which plotlines I want to be developed more, and, of course, I'll be a better writer. But, I have another fic in mind which I want to do after HWIMAR, which will probably take precedence over the revised edition.