Talked to the tech art director there and there was so suggestion of opening it to the public. The tech is awesome though! Had the pleasure of watching a live demo of the framework
I haven't downloaded it and looked but all the assets for unitys blacksmith demo are here; http://blogs.unity3d.com/2015/06/24/releasing-the-blacksmith/
I think/would hope the Smaritan Demo will be possible on the next consoles. By then it will definitely be possible on PC probably with a single GPU instead of 3.