I was also trying to figure out who survived. I think it was the original, replica Holly kept trying to deny that she was like her original I think that after hearing the whole story she could not bring herself to kill the original there by proving that she is not like herself in the final moments of her life. But I could be wrong.
I have to agree the world was great and I would love to see this one as a film the fight scene at the dance place would be incredible getting to see the world change as she touches people would be alot of fun. I liked the complexities of the people nobody was in the right each group had some good motivation but there actions were not. I think in the end we do not see the good people we have those who are lost, which are the checkouts and normal people each group is trying to find something that they can't, and we have those who seek to control the world for there own purpose each believing that what they are doing is better then the alternative
Overall I really enjoyed this one and would love to see more like it