Alien: Earth er en kæmpe succes, ikke bare blandt kritikere, men også kommercielt for Disney+, og derfor lader der nu til at være en åbenhed omkring en potentiel opfølgende sæson, også selvom serien tilsyneladende startede med kun at være en sæson.
I et interview med Evolution of Horror siger skaber Noah Hawley, der betragtes som værende afgørende for seriens succes, eftersom han har skrevet det hele, instrueret det meste og agerer producer også, dette:
"I mean, I think that I have a destination in mind story-wise, which allows me to know what the story is I'm telling, what it means. And I don't know how long it takes to get there, but I do have a sense of where we go in success. And you know, the question becomes: how streamlined can we make the process so that you're not waiting for three, or four, or five years for more?"
Og hvis du gerne vil have mere Earth, så har FX-chef John Landgraf tidligere sagt at de gerne vil have mindst to sæsoner:
"We're pretty bullish on Alien: Earth and we've told him that assuming, as we hope, Alien: Earth is a returning television series, we want him to focus on at least writing two seasons of it before returning to a possible sixth season of Fargo."