Kingpin is such a great game. Would be a great shame if these are never reproduced.
Given that Stern are making MM's now for Planetary Pinball, could not see any reason why Stern couldn't become a production line for small runs of games like Kingpin. We can only hope. Just need the rights to be sold off (if they are to be) to someone that will do something with them rather than just sticking them in a drawer.