I don't see why Hive wasn't able to get blood from the second Kree. I know he probably disintegrated him not knowing the other guy was destroyed, but he tore his heart out afterwards and it looked fine. A bit blue, but fine.
Also, I did keep thinking it was Mack. But they wouldn't... couldn't do that. The black agents would be known as the red shirts from then on if they killed him. I'm still mad they killed Triplet.
If Daisy goes along with draining her blood, then she will probably die. But they will probably stop that from happening... she's been the main character of the show.
They better not kill Fitz or Simmons.
I don't see them killing off Lincoln.
Honestly, the person who makes most sense to me is May. She is loved by all, but her character arch is kinda over. I think I saw people saying that they thought Lash should have killed her when he turned for the last time. I don't think that would have worked.
As much as I love her, she's not as needed anymore. It would be a meaningful death and could possibly be done in a way to close her character arch so that there's no feeling of wishing she was still there.
She has kinda been the one who's been watching over everyone. First Coulson, then Skye, even over Andrew, over FitzSimmons. Coulson no longer needs her watching him, Skye has learned to use her powers, Andrews gone, and FitzSimmons have each other. Momma May can finally retire?
Just my thoughts.