Have you guys seen this interview with the main three people responsible for Exp33? The two writers/ producers director and the creative designer? They're keeping tight lipped on spoilers but they are absolutely working on a future game or at the very least DLC, they allude to the writer/ paintress conflict.
https://youtu.be/yB-nPIBW-Ks?si=Z3pPAZ78DBELMc4c