>>44327064NDAs most likely. Japanese businesses seem do things differently, not creating "hype" until a few days before something releases.
You just have to assume that whenever she's not streaming or releasing videos, she's deep in the idol mines producing good work. But knowing her, you shouldn't worry much about the quality, since she always puts her soul in her work.
Speaking of which, I now wonder: her main goal (even when she was pink) was getting a million subscribers. Now that she's done that, what's her new goal? She has already voiced in videogames (Nobeta) and even a tokusatsu, but I wonder what she's going after...
inb4 Polka voices someone in a Pixar movie or something