On Hungarian site Nol.hu, they have a report about the upcoming Predators movie with a picture of the director Nimrod Antal on the set, and most importantly they basically give away the ending. You can find a rough translation of the article on IMDB.
Spoilers on the next page. Thanks to Darkoo for the news.
In the final scene of the movie, Royce is the only survivor and has to face the Predators in the burning jungle. The article hints that he may sacrifice himself. This again implies the story in the leaked Predator script is different to the shooting script.