Marvel head Kevin Feige revealed during a panel at the CCXP that Celestials will be big part for the upcoming Eternals film.
"Celestials are a big part of it, you’ve seen a little of the Celestials in Guardians of the Galaxy. Nowhere is the severed head of a Celestial. We will see the Celestials in their full, true enormous power in The Eternals.”
Celetials are immensely powerful and of huge humanoid shape cosmic beings in the Marvel universe. In the comics, the Celestials created the Eternals to be the protectors of the Earth, whereas Deviants wants to destroy humanity.
The Eternals cast includes Gemma Chan as Sersi, Kit Harington as Black Knight, Richard Madden as Ikaris, Kumail Nanjiani as Kingo, Lauren Ridloff as Makkari, Brian Tyree Henry as Phastos, Salma Hayek as Ajak, Lia McHugh as Sprite, Don Lee as Gilgamesh, Angelina Jolie as Thena and it will be directed by Chloé Zhao.
The Eternals will be released in theaters on November 6 2020.