However, it should be noted that the movies virtually were fully developed. Concept art had been drawn, the stories had been fleshed out by George, and Michael Arndt had written a script for Episode VII. They were fully formed. JJ decided not to use them.
I think calling it fully developed is a bit of an overstatement. George definitely had an outline, but Michael Ardnt left the project because he needed more time to finish the actual script, which Iger wouldn’t give him. From what I understand, it was during this process that Ardnt was trying to figure out how to fit Luke into the story without overshadowing the new characters, which was when they came up with the idea of making him the thing the heroes are actually searching for.
The development process was exactly that, a development. If you’re trying to go off of what we know about George’s original treatments (and treatment are basically just summaries of a story that can fit onto a few pages, if not a single page), that’s one thing. But ideas clearly changed as development continued, and I doubt anything was really fully developed for George’s original ideas.
I really think we need to map out what exactly we know from the development process. I might do that and post it later.