Three Eyes is currently working on eventually getting custom NPCs implemented, and done a lot of work on the back end to support it, but I don't think we'll see any more "official" NPCs, save for maybe an example one if they don't re-use the example custom PC. I did hear that work had begun on another project, but I'm not sure what has priority now, what form that project will take, or what the timeline is on custom NPCs or any other projects.
Thanks for the info. I mean it makes sense, the description of this game mentions it is an experiment. If their next project is an evolution of Silverpine then I'm all here for it and will support them. There is some serious talent behind this and it would be awesome to see even more work done that is centered around LLMs on this scale.