As the lead of ‘Eternals’, Sersi could encroach to appear in other MCU productions. The cosmic nature of the Eternals group means she can appear in groups like ‘Guardians of the Galaxy Vol. 3’, ‘Thor: Love and Thunder’, or ‘Captain Marvel 2’. Besides, she could also become a member of the new Avengers team in a future movie if Marvel intends to do so. While we currently don’t have any information on how ‘Eternals’ will relate to the entire MCU, but with the connection revolving around the Celestial creatures and Thanos, it is possible that the Eternals will still appear in the MCU for a while. long time.