No, he didn't. The whole thing was almost a throw-away line in a bigger interview and had no specifics. My thin hopes are related to the fact that Sessions specified that he had appointed a prosecutor, as you said. Why appoint a prosecutor as a special counsel if you don't intend to prosecute? We'll see what happens when Horowitz releases his report.
I thought Sessions said that he has somebody outside of DC, looking into appointing a Special Prosecutor.