Just listened to the podcast on WTKA recruiting roundup.... and Sam Webb said to remember what he saying that there is a good chance there will be a surprise top recruit next few weeks showing up to the game, that would "shock" everyone. He went on to say that he is not allowed to disclose who it is, at the behest of the recruit himself. Sam said it is not Sammy Watkins.
And if I recall, that Clinton-Dix accompanied Hart on his last trip to Ann Arbor, that Dix would not give permission to beat writer (I forgot who it was but I think it was Sam again) something along the lines of ''you better not report i'm here".
Putting two and two together, my money would be on Clinton-Dix who is this recruit Sam is not allowed to reveal.