Well if I saw right and not seeing things because I stayed up late, the latest activity was the twenty-fourth of Feb by D-Dub.
Also I agree that people need to buy games in order for the devs to afford to make better quality sequels and new franchises. I'll guess because of the quality of Bone games hardly anyone is actually buying them. Sad.
All I hope is that they speak up within the next year about what they have for the future or something. I'm going to guess that 3D Katie thing is their current project(s). Hopefully a Bonetown 2 will improvements and what not will come one day. Should change the engine to allow bigger better quality worlds, expansions, and DLCs.