A movie about a new race of beings, like The Eternals, is a perfect opportunity for them to do just that.
The Eternals were created in 1976 by Jack Kirby, making their first appearance in Eternals #1.
Marvel’s Kevin Feige has confirmed that Phase 4 will take the MCU in a more cosmic direction with a movie based on The Eternals, a race of superpowered cosmic beings.
Marvel technically introduced the Eternals to the MCU last year in Guardians of the Galaxy: Vol 2 with Ego, Peter Quill’s father.