Hey Kyle, this is amazing. I really like your thought process. I think it would be really cool to see the story from a different point of view, especially the fight scene you mentioned. It would definitely give the books a twist and make it interesting to read. I much perfer this idea to the idea of more books based on Harry's children. Personally, I think that would be pointless, but your ideas could provide different view points and other adventures. Ireally like it. I wish JK would do this, but as you said wishiful thinking.
P.S. How do you have the time to come up with all this?