It is difficult to figure out what DAZ will release for V5

According to the "official" statements now, it will be a morph of Genesis and you can use it in Poser by means of a new CR2 exporter.

If that is the case, it would mean that you have to use DS4 to load the figure, add the morphs, add the clothing, use autofit for V4 clothing, pose it if you want to use Genesis poses and then export it to a CR2 which you can then use to render in Poser. You can use the free DS4 to export, but you will still need to buy autofit to be able to use V4 clothing.

But this is all speculation since nothing has been released yet of the CR2 exporter or V5

For now it does not seem to be something you'd want to use in Poser