2014DAD,
So to summarize, your 2014 son missed most of his junior year high school and travel season. Did any college coaches or scouts see him prior to the injury beside the Big 12 school that told him he was not what they were looking for? I'll assume there has been no interest otherwise you would have shared it.
Did he attend any showcases prior to the injury? How are his grades? Do you live in a warm climate (so he can practice and rehab)? Is he a pitcher or a position player? Are you seeking programs in warm climates with Fall & Winter showcases and camps (so you can get on the field)? In my mind, these are all factors that may come into play as he tries to find an interested program that lost a recruit or is looking for a recruit. Your son is possibly going to have to work harder to find a baseball situation that fits, and get really lucky.
There is another thread that deals with this topic titled "Still Recruitable While Injured" in the Recruiting section. There is some good advice from people that have been in your situation. Good luck, and I hope he is healthy soon.