I highly suggest you don't upgrade to SW2012. I have the Keyshot Plugin installed in SW2012, and it took me about 1.5 days of fiddling with stuff. I don't even remember how i got it to work, I had to run everything as an administrator, and manually put things in various folders inside SW, because Keyshot won't release a straight up patch that allows KS2 to import 2012 files, for some reason.
It sucks. Also, the tesselation is pretty bad, and when I change "Bodies" to different colors/apperances withing SW, then import them, they come in as one color, which makes rendering pointless. I have to select every single face of each body, and change the face colors in order to get it to work. Super annoying.