"I am wondering how much of the old crew will be working on Poser 6. What will break then?..... " I would suggest expecting the light hacks to be thoroughly broken, and for additional features there, and otherwise to expect a bit more speed and general usability. But that's just my suggestion. As for how much of the old crew: enough to make it worthwhile, not enough to be thinking politics....

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)