I am a huge fan of the original but that last one that came out was just awful! I am however not a fan of Rob Zombie's movies and think that this film could have potential if they don't ruin it with a stupid origin story! Origin stories really take away from characters like Leatherface. He is so much scarier when you don't know what he is and why he is the way he is. That is why he was so scary in the original! They have a chance to do that with this one, but they
probably won't! Check out indie film First Annual Barbecue. It is a concept for a prequel that has gained some support! Here is the trailer. You can see the film on IndieReign.com
https://www.youtube.com/watch?v=lVayYlR7cyQ