I think a retopology tool for Poser would be extremely useful.  I wouldn't limit its application to cr2 files and their base geometries, however.  The ability to apply retopo on other geometries within Poser would be useful.  If you check the Python forum, for instance, andygraph has a series of posts where he seems to require re-meshing as part of a scripted solution to the problems he presents.  It might also be useful if a user could duplicate one geometry's topology on another object.  Right now I'm porting old characters from Vicky 1 to Antonia, and I keep wishing I could just project the Antonia topology onto the existing V1 figure.  If we had topology transfer tools, morph and weight transfer methods would not require that both meshes involved be similar in scale or shape.  Easy UV transfer would be possible, too, because we would have a 1:1 vertex and polygon relationship between meshes, removing any ambiguity about where and how to apply splits for UV seams.  Hmm.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.