If I can give any advice to any authors, musicians, movie directors, video game designers, or anyone else in the entertainment field. You will not please everyone so don't please anyone but yourself. Don't please anyone in focus groups. Don't please anyone on this or any forums. If you're working on something that has it's legion of fans, ignore them! If you want 50,000 explosions in your movie about giant robots, have them! If you want to tell the story about your iconic villan's childhood, do it! If you want to change a superhero's costume for some reason, go ahead! Or don't! Just have it be your decision and not anyone else's. Because the real problem isn't whether or not someone decide to change something iconic, it's when they let other people decide that for them.