Marvel Studios’ Eternals offered a new look at the ever-expanding Marvel Cinematic Universe. Yet, the rest of the universe always catches up with any new property, most commonly within the post-credit sequence. Surprisingly, the film was a bit more restrained outside of one voice line. We normally don’t get many glimpses into what the original plans were or even what was used in earlier pitches, but luckily the writers Kaz and Ryan Firbo have opened up about initial pitch ideas.
It seems that they originally envisioned a sequence similar to what we see at the end of Shang-Chi and the Legends of the Ten Rings, where the Eternals join the new lineup of the Avengers. Yet, they even considered having them sit down and talk with Ant-Man and the Wasp: Quantumania villain, Jonathan Majors‘ Kang the Conqueror. Yet, they wanted to focus on one of the series supporting characters instead to further develop their place in the MCU.
It was a good decision to focus on stories that build out of Eternals and not interconnect them too early. The film stands on its own merits quite a bit and it may have muddled it if the Avengers suddenly appeared at the end. Plus, if they had a discussion with Kang and it just cut there, it may have driven many fans crazy to find out what they are talking about. Plus, it would’ve been a waste to introduce Dane Whitman without teasing the Ebony Blade at some point in his story.
Source: The Wrap