I’m glad there’s a general thread for novel edits now! I think it’s something that’s only had the surface scratched. (I’ll finish my TROS one eventually!)
I had an idea to edit together Han Solo At Star’s End and Splinter of the Mind’s Eye, to result in a book that had all of the main cast in it, but when I read SotME I found it to be of incomparably worse quality than Brian Daley’s Han Solo books, so, it would either require a tonne of new writing, or a different “Luke and Leia without Han” source.