When does Hilda return?

The series follows the adventures of fearless Hilda, an 11-year-old girl who, along with her mother Johanna and her deerfox Twig, moves to the fictional city of Trolberg. The series debuted on September 21, 2018, as a Netflix miniseries to critical acclaim. The second season was released on December 14, 2020, and a film titled Hilda and the Mountain King premiered on Netflix on December 30, 2021. The show won Annie Awards for "Best Children's Series" twice in two years.
Hilda is a young girl who grew up with her mother Johanna in a small cabin on the edge of the woods near the walled-in city of Trolberg, between the late 1980s and the mid-1990s. Hilda and Johanna soon move permanently to the city for a better life and to give Hilda a proper upbringing. Over the course of the series, she and her deerfox Twig, later accompanied by an elf named Alfur, and best friends Frida and David, go on a number of adventures interacting with and befriending the mysterious animals, people, and spirits.