*It already is as far as I'm concerned...... at least the majority of content released, there are still exceptions. * Polygonal modeling reached it's apex 9 years ago.  Polygonal is resource intensive and because of co-planar polys lends itself to artifacts in renders.  The industry standard now is Sub-D.  here's an example of Sub-D modeling.  This the start of the hellbike all sub-d and only fourth of the poly count.  Unfortunately,  Poser content is polygonal.