There will most probably never be a release of a Perfect Doll where you will not have to make workarounds and Fixes, right out of the box ( Where would the fun be ) V4 still would have huge potentials if creators would continue working on her. Due the huge offers of addons still the most secure direction for a Vendor to be getting some more sales :)  I understand that it is more difficult now since Bondware changed the Python engine in Poser so many packages that contain Python helpers do not work correctly anymore, also the Lali for the Genitals will no longer be an option as she cant be created since Poser 11.2 Bondware version, same with the Perfect versions with all the fixes, or the Weight mapped V4 , the biggest loss are all the AS-Alice versions that will not be fully working anymore. The Python change was like throwing all these great works right into the shredder. With all these great extensions all these great Creators also vanished at least for Poser , It will be a loong hard way for a new Doll to reach the level V4 had reached that is for sure and I doubt that there are enough great creators left to accomplish this plan.