I think that much more detail would have gone into pretty much everything, with minor edits to various plot devices used throughout the series. Some things would be introduced or at least spotlighted more, such as romance, side stories, and minor characters. I would hope that some amount of it would go over real-world issues like morality, but sticking to the bascs of it. Also, I think they would extend the years into at least a movie/season/two books each. And make the ending better. :3 As stated above, I would keep things like Unity, Duty, and Destiny. That is what determines good and bad in the series. Of course, killing might be absolutely necessary at times, but I would hope that they'd try to stick to it. And it keeps the same villains around to be used later.