Tyrion is featured in this snippet from the Game of Thrones Season 4 trailer. We can't wait to see the whole thing!
Added:
This is a Vine from the Game of Thrones Season 4 trailer. Watch the snippet now.
Added:
What's on tap for HBO in 2014? A whole lot, including scenes from Game of Thrones Season 4, as you can see here.
Added:

Game of Thrones Season 4 Quotes

Nothing isn't better or worse than anything. Nothing is just nothing.

Arya

Tis a big and beautiful world. Most of us live and die in the same corner where we were born and never get to see any of it. I don't want to be most of us.

Oberyn