LaurieA, I think you guys have hit on the key. 

Unless there is a change in either Poser or the Characters in the future that offers dramatic new capabilities, there is no real motivation to upgrade. I didn't go to M4/V4 when they were first released. I saw no real advantage UNTIL the vendors started making stuff FOR THEM that I wanted to be able to use.

The Gen 4 characters could be the end of the line and it wouldn't affect what I do with Poser. With over 100 Gigs of content, I think I'm fixed for the forseeable future. It's not what do I really need it's what would I LIKE that I don't already have.

I think there is going to have to be a paradigm shift in the way the programs do what they do for the scenario you imagine to come to be.

Besides, I think Daz knows that making the figures incompatible would be major foot-shooting. It would be like Poser making the Daz characters not work anymore.