Z-brush has sort of become a companion to advanced poser users due to the fact that you can edit mesh and import it back into poser as a new model.

What I most would like to see is a mud box like Zbrush added to poser as a new editing room.

poser with zbrush tpe tools and to be able to everything z brush can would rock the 3d community down to it's foundation and it's long in comming since advanced poser users have been playing around in zbrush along time now.

second thing I want to see is a decent clothing translation program allowing an item worn by one figure to be made wearbale by another this is long in comming too and I am aware there are some around made 3rd party but like to see this mug built in to poser as an option.
one that actually works without alot of mesh hashing.

better camera controls I think the best cameras I ever saw were in true space, be nice to see poser have camera objects you can actually move around the scene and parent to other objects or animate them if you want, without all the hassel of trying to dile around the scene.
tjhink they need to take a look at truespace and gets some ideas.