I totally expected Boomerang to die. He was hardly in the marketing for the movie and it would add a bit of a shock factor to kill off someone from the previous movie. Hell, I was halfway expecting them to kill off Harley too, but while I was actually watching the movie, I figured they didn't have the balls to actually go through with that one. Would have been dope though. Not that I dislike Harley or anything. That would have just genuinely been unexpected.
Harley is just to popular to kill off to the point where it's honestly kind of annoying, but Margot Robbie does such a good job at portraying her that I'm okay with it for now. I just hope they don't over do it.