The problems with the EF figures were stylised figures which made them harder to morph and the rigging was atrocious. Which they kept and still do blame it on user error. The rigging has never been fixed.

Daz figures are the easiest to morph. The main morph packages are done in house. But these figures are getting harder to use in Poser. We do a lot of hacking and fixing now days.

If there was a company that started to make figures that matched DAZ figures but made for poser, I think that market is now open.

I know, some are thinking it's harder than you think. No, I know what it take to do it. I also know that most of the example that I have seen in the 10 years I've been around are by individuals or a couple of artists. It would be different if it was a real group/company that did it.