Open mysteries in the show?

What am I forgetting?

1. Who was the guy in the corner in Jackie's death vision? I mean prob cabin guy, but we have gotten no new info about him in s3...

2. In general who was cabin guy?

3. Where did Crystal's body go?

4. What was up with Travis's death?

5. Obviously the whole is it or is it not supernatural conversation. Is there some kind of time traveling going on?

6. What exactly is other-Tai and why's she eating dirt?

7. What is the symbol?

8. Was Adam something else than what he told Shauna?

9. Who was Javi's friend?

10. Is the whole Kevyn/Matt storyline over?

11. Who lit the cabin?

Comment if you can think of something else!