Great news.  I am having success loading Genesis 9 in Carrara, posing, rendering, and converting Genesis 8 character morph shapes to Genesis 9.  Less success converting individual G8 body part morphs to G9 without morphing the whole figure.  Probably my error on that one.  

Convenience will need some conversion utilities, such as for skin maps.  I successfully converted the G8Male Mummy shape to for use with Genesis 9, but the maps for G8 don't match the UVs for G9. At least I don't think so.  Maybe there is a setting I am missing.  There are places to change the UVs so I may have missed it.  Meanwhile, I have a G9 base skin merchant resource from RawArt that I am hoping will be the perfect starting point for a monster.  Here is the G9 figure with a morph for Genesis 8 Male Mummy character posed and rendered in Carrara.  Just Carrara's default gray shader.