You can’t keep the Italians down.
Gomorrah will return for a fifth season sometime in 2021, although the new season is likely to be it’s last.
Cattleya President Riccardo Tozzi had the following to say about it:
“At the moment, we feel like this is the last season. You never know. But at the moment, we think of it as the last season.”
They were also optimistic about a return to US televisions stating:
“I’m confident we will find a solution soon in the US.”