I’m opening this thread as a way for people to give ideas on upcoming books. Just suggest any idea that comes to mind. Maybe a What If? Or two as well.
What if Marasi Colms lost her family? After everyone she loved had passed, including her half sister, her husband, her parents, and her other relatives in some great accident, and she became so depressed that she decided to stay in a slow bubble until Mistborn age 3, and she plays a minor role in age 3 as an old woman?
Wayne should ascend to Kelsier level
Someone in Mistborn age 3 should hear the voices of Kelsier and Wayne
Kelsier should, in a plot twist, know Wayne quite well because Wayne got to know Kel’s ghost after he died.
Kel and Wayne’s ghosts should play some sort of role in Mistborn age 3
Enjoy the ideas
Update: Kelsier created a new body for himself a little after the catacendre
Kel and Wayne should still play some sort of role