I was suddenly hit by inspiration after viewing one of the new screenshots. Number 7 shows some of the zombies in different lighting, giving them a ghostly and ethereal look. They also looked larger.
Those are champions! Champion packs receive a slight blue lighting effect to help distinguish them. And they will rock you. I die to champions all the time… It’s pathetic.
You’ll also notice in the next screenshot the next step, with the champions dead, and what they’ve left behind.
…Those are current health globes.
Did I say something somewhere saying something about them changing beyond this look? Maybe I confused myself.