There will be a Thor: Ragnarok Prelude comic book released in October and apparently it will touch on the Hulk’s origin in the Marvel movie universe. Listed below is the description of the comic:
The stage is set for 2017′s far-out fantasy epic, Marvel Studios’ Thor: Ragnarok! Catch up on the incredible events of Thor: The Dark World and learn where major players including Odin, Loki, and Thor himself stand ahead of the next blockbuster chapter in Asgardian lore! And revisit the origin of Ragnarok’s other headline star, the Incredible Hulk!
Plus: Classic comic-book tales featuring the two mightiest Avengers of all! Thor enters the underworld to face Hela – and the Hulk does savage battle on an alien world! It’s cinematic action in the Mighty Marvel Manner!