We haven't heard anything yet but the applications just closed yesterday. I believe the selections are made by each individual SAME post so will likely depend on when they meet and be a bit scattered. Will definitely let you know if we hear anything!
It has been quite a few years ago and there may be some difference now on how the selections work now and I believe it varies by branch. When my DS did it, he applied directly to the Army S.A.M.E for the Vicksburg, MS camp. There were no interviews and he was notified by the national organization that he had gotten a spot. We had to pay for his airfare, but everything else was covered. I believe it was in March when he found out that he had gotten in.
I, too, am surprised that we don't hear more about his camp on this forum. He had an amazing time, learned a lot about engineering and it helped solidify for him that he ultimately wanted major in engineering, branch engineering in the Army, as well as a pursue a civilian career in engineering when he is done with his commitment.