The Tasmanian Government did announce that they have provided funding for developing a second season and Marta Dusseldorp was working on a script. It might skip a year (like Total Control does) and come back in 2025.
The story arcs came to a conclusion in those shows, so no real need to continue to another season. With Gold Diggers, the characters faced the music in the final episode and no longer need to be on the run. With In Limbo, the reason why the dead character was appearing was explained and he stopped appearing. The Messenger was based on a novel and the mystery was solved.
It would be very diffucult to comtinue to make another season of Crazy Fun Park since most of the characters were ghosts who died as children. The problem would be that the chacters who play the children would age and therefore would no longer look like the children ghosts. The Disposables story was also resolved although potentially it had a cliffhanger where the story could continue.
One underwhelming season was more than enough. 