Acuos,

One of the problems with Bryce is that exotic interface. The original developers were more concerned with aesthetic than with functionality. That's one of the reasons why there are so many shortcuts, mostly undocumented.
Another one is that Bryce is a closed package. Can you imagine how many new plug-ins would exist now if it was open like Terragen?

What concernes me more is the absence of the usual rumors that always precede a new release, or of new wish lists around the forums.

Fernando