Barty Jr. is gone. I don't worry about stuff like that. The movies are a clue to what's improtant to Rowling, and most details are not important. Killing off a major character would have added another five minutes to the film without improving it.
I'm just hoping that Crouch really IS gone. I'd hate for him to show up in the next movies--the way the plot went in GoF, he could easily take the place of Bellatrix LeStrange, and I'd hate that. She's a perfectly twisted, evil character.