Dear Brandon,
I have many questions, and I'll try to get all the best ones out.
1. Do Stephen's aspects exist in the way bonded spren exist (independent Spiritual and Cognitive aspect but tied to a human.)?
2. Did Razon's camera use the same spiritual gravitational anchors as time bubbles?
3. If two people grabbed the hilt of a Shardblade at the same time and then it got knocked out of their hands, which one could resummon it?
4. How do worldhoppers communicate on all the Cosmere worlds? Is there one universal language? Do they just learn a new language for each world?
5. What would happen if Nightblood and a Shardblade hit each other?
6. What would happen if, right after someone died, they were made into a Lifeless, and then Endowment tried to Return that person?
7. Is Soulcasting mass-conservative (Soulcast a 1kg goblet, you get 1 kg of blood.)?
8. Could vampires survive on Soulcast blood?
9. Does chocolate exist in the Cosmere?
Just remembered two more:
1. Is it at all possible for Kelsier to be reincarnated/posess someone/show up as a ghost/whatever and become a character in a future Mistborn book?
2. Can a Feruchemist store an attribute in a metalmind that someone else has already stored in and if so, do the charges affect each other in any way?