1. A studio will show a sneak peek trailer that's just vague voice-over and the title of the film
2. A superfan will cry at a panel when asking a question
via Clevver News
3. Deadpool cosplayers will form a conga line
4. Joss Whedon will try to talk about his new work but won't be able to because Firefly
5. You'll be forced to get creative with the swag bags.
6. Violence will flare up in one of the hours-long lines
7. A famous star will cosplay and blow your mind.
8. The Game of Thrones actors will admit that they haven't read the books.
via Game of Thrones
9. A studio will announce a rumored movie nobody wants and not mention a rumored movie everybody wants
10. Patrick Stewart will be forced to witness another proposal.