Now, there's a lot of speculation online that All Hail the King will deal with the aftermath of Thor: The Dark World, which of course ended with... SPOILERS... Loki (Tom Hiddleston) sitting on the throne of Asgard, having assumed the identity of Odin (Anthony Hopkins). However, considering that Iron Man 3 star Ben Kingsley has confirmed that he's filmed a Marvel One-Shot, and his character Trevor Slattery was the toast of Croydon due to his turn in King Lear, I'd put my money on this being the Kingsley short.
Anyway, here's the full list of extras, complete with timings....
ALL HAIL THE KING – A MARVEL ONE-SHOT
A BROTHERS JOURNEY – THOR & LOKI (PART 1)
A BROTHERS JOURNEY – THOR & LOKI (PART 2)
EXCLUSIVE LOOK – CAPTAIN AMERICA: THE WINTER SOLDIER
SCORING THOR: THE DARK WORLD WITH BRYAN TYLER
DELETED & EXTENDED SCENES: EXTENDED CELEBRATION SCENE
DELETED & EXTENDED SCENES: JANE LEARNS ABOUT THE AETHER
DELETED & EXTENDED SCENES: LOKI: THE FIRST AVENGER
DELETED & EXTENDED SCENES: THOR AND FRIGGA DISCUSS LOKI
DELETED & EXTENDED SCENES: DARK ELVES PREPARE FOR BATTLE
DELETED & EXTENDED SCENES: EXTENDED VANAHEIM SCENE
EXTENDED CELEBRATION SCENE COMMENTARY BY ALAN TAYLOR & KRAMER MOREGENTHAU
JANE LEARNS ABOUT THE AETHER COMMENTARY BY ALAN TAYLOR & KRAMER MOREGENTHAU
LOKI: THE FIRST AVENGER COMMENTARY BY TOM HIDDLESTON
THOR AND FRIGGA DISCUSS LOKI COMMENTARY BY KEVIN FEIGE
DARK ELVES PREPARE FOR BATTLE COMMENTARY BY KEVIN FEIGE
THOR THE DARK WORLD (FEATURE WITH AUDIO COMMENTARY)
Marvel's Thor: The Dark World is directed by Alan Taylor (Game of Thrones), and also features Chris Hemsworth (Thor), Natalie Portman (Jane Foster), Rene Russo (Frigga), Stellan Skarsgård (Erik Selvig), Idris Elba (Heimdall), Ray Stevenson, (Volstagg), Jaimie Alexander (Lady Sif), Tadanobu Asano (Hogun), Kat Dennings (Darcy Lewis), Zachary Levi (Fandral), Adewale Akinnuoye-Agbaje (Algrim / Kurse) and Christopher Eccleston (Malekith). The film is set to hit DVD and Blu-ray in North America on February 25th, with a UK date yet to be confirmed.