During a very quickly displayed (and not publicly released) sizzle reel compiled for Thor: Ragnarok's reveal at SDCC's Hall H panel for Marvel Studios, several pieces of concept art were shown. Loki was shown with a new costume, several new shots of Asgard appeared, and Thor was shown with some red streaks down his face. Many tribal-looking characters were shown, in fact, perhaps indicating the presence of the "Planet Hulk" storyline rumored.

Then came one quick shot of some sort of throne room, with godly looking characters. They had some very Jack Kirby-esque circles and lines drawn of them, and the first thought that came to mind were The Eternals. Long rumored for the Marvel Cinematic Universe (though most often as a TV show), the Eternals are another set of godly creatures, these ones created by the Celestials. Of course, they also share an aesthetic with the Celestials, so it could have been the latter, the elder gods of the universe, in the footage. We did see a Celestial head in Guardians of the Galaxy, home to Knowhere, and saw a vision of a Celestial elsewhere in the MCU, after all.

However, the context of the character sitting down in what looked like some kind of throne room, and other characters around it, seemed like these were more humanoid than "massive space god" kinds of characters. Continuing to explore the strange relationship between alien "gods" and humans and superhumans certainly wouldn't hurt Thor's relationship with the rest of the MCU. Whether it's the Eternals or the Celestials that created them, it's clear the Asgardians have a lot to deal with in Ragnarok, as an armored Hulk, the underworld goddess Hela, and the fire demon Surtur also appeared in the very short and rapid clip.

Thor: Ragnarok just began principal photography as it works towards a November 2017 release.