As a customer, I don't think that you'll have to worry about conversion because Dawn's poser and DS version share the same topology, polycount, shape and rigging. That's mean that i would be rather easy for a content creator to make a DS and a poser version.

It far more difficult to make a genesis and V4 version of the same product because basically, you have to make twice the work.

You can bet that most content creator will provide installer for both version.

As paul explain (somewher in this thread) from DS you'll just have to export your conformer as a cr2 and it should work in DS.

As a content creator, it might be necessary to test it in poser for a commercial product because you may have to tweak a little the morphs and weightmaps.