Bio-Mechanoid Killers!! AMC Theatres accidental leak!!

This idea got me thinking but what if the planet that the Prometheus goes to is actually the Xeno's homeworld or at least where they were created/hibernate. This is the video description for the trailer loaded by Amc theatres which was released shortly after Ridley Scott's and Damon Lindelof's interview. I think AMC has released to much info then they should've! Here is the video description: "In the distant future, two superpowers control Earth and fight each other for all the solar system's natural resources. When one side dispatches a team to a distant planet to terraform it for human colonization, the team discovers an indigenous race of bio-mechanoid killers. Ridley Scott, director of 'Alien' and 'Blade Runner,' returns to the genre he helped define. With PROMETHEUS, he creates a groundbreaking mythology, in which a team of explorers discover a clue to the origins of mankind on Earth, leading them on a thrilling journey to the darkest corners of the universe. There, they must fight a terrifying battle to save the future of the human race." Now the two superpowers I think are Weyland industries and Yutani Corp. The bio-mechanoid killers are the Xenos and/or their predecessors! Maybe even the Jockeys or the micro creatures that infect Holloway! Here's the link to the video: http://www.youtube.com/watch?v=HHcHYisZFLU Love to hear what you guys think!!