Should look exactly like reading view, WYSIWYG
Should we have an optional Edit summary ?
Perhaps as you’re editing a page, it should create the Diff view in realtime. And perhaps deletions would go to the bottom because we don’t want to make the edit view feel cluttered with all the deleted text. Perhaps deletions could also be in a collapsed section at first.
Show that saves will be immediately saved if I'm a member of the Group that owns the page
If not, my changes will be sent to the owner's Moderation queue for approval
We could highlight the specific line you're on
This could help to educate users about what lines are all about and such