Could we skip the BasicInfo/Cover/Content/Publish dance when we are just updating chapters? When I go to edit a chapter, I get put into the process to create the whole work. This might be hard if your data model and matching code aren't just right, so I won't hold my breath. But when my mind is on the chapter, I don't need to have something demanding that I think about the cover and lose what I'm holding in my mind.
A different kind of enhancement: a 'notebook' that can have multiple 'pages' with titles. Each page can hold text, images, and most important of all, links, links to forum posts, links to specific chapters of works (these might not be a simple HTML link format, or if they are, they might be formatted for special interpretation), links to things internal and external.
It the 'pages' could further be organized into titled entries, and if an entire entry could be PM'd to another user, it could be especially helpful. Likewise if a PM received could be routed directly into a notebook entry.
Being able to move entries from page to page would allow the writer to move things not currently needed off into a page for later reference. Of course, this could be elaborated on indefinitely, but this much would add a nice capability.
Searching on titles and content would flesh the whole thing out.
You've got a lot on your plate now, but I wonder how many other people would find this useful in the long run.
