If I were a betting person, I'd bet he never sees the MLB. What happened to him is not normal. I said when it happened it reminded me of Chad Fox and it is pretty much the same injury that ended his career, although Fox was 38.
I watched the LSU/Wake game yesterday. Skeens had velocity, but he throws a lot of hittable pitches. I don't know much about projectability or the other stuff that may make one pitcher higher regarded than another.