Yesterday, we reported that Game of Thrones will return with the Season 4 Premiere on Sunday, April 6. The first full trailer will debut Sunday, January 12 at 8:58 PM, before the series premiere of True Detective. Today, HBO has released five brief trailer previews on Vine, featuring never-before-seen footage with Tyrion Lannister (Peter Dinklage), Daenerys Targaryen (Emilia Clarke) and Jon Snow (Kit Harington) in action. Take a look, then stay tuned for the full trailer on Sunday night.