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This news may contain spoilers
The series managed to wrap up the epidemic outbreak arc well, revealing details about the village, and toward the end of the series started exploring the theme of genetic manipulation, creating giant and monstrous cattle, a theme that could be developed in the second season. We still have the uncertain fates of Chico, who is hospitalized after suffering homophobic violence, and Manu, who seems to be imprisoned with remnants of the virus.

As for a confirmation,
Netflix typically takes about three months to evaluate the reception of a title and decide whether to renew it for a possible continuation.
Another important piece of information we have is that based on statistics of launches and renewals, a sequel should only debut on the catalog by the end of 2021, if the response is positive.
So, all that's left is to hope and wait.