Sadly I think Oroboros may be right. DAZ cannot make much money from Bryce, there is a lot of competition out there in terms of 3D and gaming / animation software.
To me Bryce is a really amazing program and David and Horo have been hero’s in revealing its depths to lessor mortals like me.
I really hope that if DAZ ever do drop it, they release the code so that some smart minds (with free time and lots of independent financial support!) can perhaps re-program the algorithms and interface in a modern open source language and add and any needed modern functionality. Who knows.