I am with moogal on this - I really don't think there is much more that can be done for a figure within Poser. I have always viewed "better bending" as much of a red herring as communism. The "better bending" crowd will never be satisfied, and quite frankly, I think it is a waste of time to try to cater to customers that won't actually be buying content.

If you are looking for improvements to a figure - take a hard look at the cottage industry that is devoted to fixing the DAZ figures. How many products were made for each figure? Would any of those types of add-ons improve a modern Poser figure? Personally, I think it would be better to add improvements as add-ons. That would make it easier for vendors, and anything that can be done for that is a good thing.