***Perhaps P7 can let you use one of those newer file formats that hold 16 bits. And perhaps ZBrush can export 16-bit displacement?
****as such no. but Stew's WACRO allows you to load in a 16bit D88 format file exported from Zbrush into Poser and have that rendered correctly (posers 5,6,7)  it also allows you to load JPG's in and have them render smoothly.