If J.K. Rowling doesn't/didn't want a Harry Potter cartoon show, then there won't/wouldn't be one. Period. In any event, it wouldn't be ready to roll by 2008, even if such a project were greenlit today. As Neo said, it would take at least that long to get the legal mumbo-jumbo out of the way. Plus, if anybody were going to spin Harry Potter off into a cartoon show, they should've done it a lot sooner than 7 books into it. Also, the HP books and movies get pretty dark and violent, and TV shows have to be cleaned up considerably. A HP show would probably be so homogenized that it would most likely turn off most of its' fanbase. Like I said, if Rowling doesn't want the franchise to continue in any way, shape or form, then it won't.