Really enjoyed this season. Sad to see the butler killed. I liked how they were expanding his character.
I do expect Ms. Ives and Ethan to rejoin, likewise the Dr. and his creation.
Many wonderful scenes this season, but one of the most enjoyable was the little gay dude and Ethan talking about how many guns he carried.
My prediction is that:
1. Lilly and Dorian will attempt to force the Doc to help create more immortals.
2. John, especially after Ives' guilt-bomb, will realize he loves/wants to be human too much to let Lilly and Dorian get away with enslaving the world. Jealousy will help here.
3. The Daughter witch will come back stronger than ever as Lucifer hasn't given up on his bride.
4. Somehow, Ethan and Ives will have to realize that they are part of God's plan, giving Ethan a reason to live rather than end up in the clay.
5. Ives will have to go to the US to rescue him and enlist Sir Malcom to help.
6. The Lilly group and the Lucifer group will join, leading the Doc, Sir Malcom, John, Ethan and Ives to put the band back together.