Disclaimer: I have not seen The Last Airbender movie, but just watching the Honest Trailer gave me a pretty good idea about how bad it is. Now I'm not saying that their needs to be a reboot and neither do I want one, and the chances of a reboot are slim. This article is more about "If" a reboot where to happen, these would be the people I think would be the best suited.
So now with that out of the way, its time to see who I would pick to be involved creatively for a new Avatar: The Last Airbender movie.
Michael Dante DiMartino and Bryan Konietzko
OF COURSE the creators of the show need to be involved in the making of the movie, its their baby. Not in a literal way but, never mind. I don't know how much they were involved in making the M Night Shyamalan movie, but if I had to guess, it wasn't that much. They just need to be their to make sure that the lore, the characters, and the overall tone of Avatar is captured in this movie.
Now you guys are probably wondering, "Who in the Hell is this guy?" Unless if you are a hardcore Star Wars fan like me and know the various names of the writers, directors, and producers of the Star Wars movies, then you may have heard of him. If you haven't, he wrote movies like The Empire Strikes Back, Return of the Jedi, and Raiders of the Lost Ark.
Just seeing the work he did on those movies (and hopefully his work on The Force Awakens), goes to show that he respects the lore of a Universe and puts the story first as opposed to Toy Sales (I'm looking at you George Lucas). This makes him a prime choice to write the screenplay because then we won't get any major changes to the lore that don't make sense.
Now who will the Director be?
At first, I couldn't really think of a director that would be good for this franchise but then it just sorta popped into my head. And I think you Marvel Fans would appreciate my choice.
Seeing what James Gunn did with Guardians of the Galaxy, makes this choice all the more logical. In GotG, James Gunn was able to write a very humorous movie, but also a movie with great emotional moments that just get you right in the feels. And if you watch ATLA, you get that humor with very emotional moments. Plus he made people like a movie based on a property that no one in the mainstream cared about, even comic book fans could care less about them, but now its one of Marvel's most popular movie yet. And with Avatar, there is kind of a bad taste in the mouth that comes with it thanks to the Shyamalan movie. So maybe James Gunn could get people to care about Avatar again.
Now I know this list is probably unrealistic considering that Kasdan barely writes anymore and James Gunn might be too expensive come time for a reboot, but these are the people that I feel would have what it takes to make a good Avatar movie.