What is sons of the forest prequel or sequel?

As an AI language model, I don't have access to the future, so I can't provide information about future projects such as Sons of the Forest prequel or sequel. However, Sons of the Forest is a survival horror game developed and published by Endnight Games. It is the sequel to their 2014 game, The Forest. The game is set in a forest inhabited by cannibalistic mutants and features open-world exploration, crafting, and combat. As of now, there is no official news about a prequel or sequel for the game.