That may be true, to some extent.  The latest photoshop does have quite a few interface changes; but that is not my point about wanting a change in Poser's GUI.

I don't care what the GUI is like as long as it allows me to get my work done efficiently.  If a layout that is 20 years old provides that, then great. 

I don't want a change just to have a change.  I want a change that will allow me to work more efficiently.

I do realize that a drastic change without allowing one to use what they are accustomed to using can be disastrous as well.  That's why I would hope that they would 'transition' over several versions; always allowing the 'Classic' interface when possible.

I have to admit, I really like the GUI for DS.  But I don't use it as my main setup tool.  I use Poser as it is easier to integrate with Vue; and feature-wise it still doesn't quite match Poser IMHO.  But it is getting there.