Gossip and semi-official promises about that new parts of the comics have been circulating for many years. In 2002 Polch discussed tentative plans to create a prequel (part 0 - Szalony pilot, Crazy pilot), as well as sequels (part 4 - Aż na koniec świata, To the end of the world, and 5 - Dom wariatów, Madhouse); while Maciej Parowski suggested another working title for a sequel, Bez litości (No Mercy). In 2004 plans for the new part to be published in Nowa Fantastyka fell apart due to disagreements between the authors and the publisher.
For years, rumors and unofficial promises about future installments of the comics have circulated. Polch proposed a prequel (part 0 - Szalony pilot, Crazy pilot) and sequels (part 4 - Aż na koniec świata, To the end of the world, and 5 - Dom wariatów, Madhouse). Maciej Parowski also suggested another title for a sequel, Bez litości (No Mercy). In 2004, plans to publish a new part in Nowa Fantastyka fell through due to disagreements between the authors and the publisher.