Here's my (worthless) prediction: I'm afraid we miss on all three.
I just can't see Tyus coming to KU, and unless they surprise everyone and go their separate ways I think Okafor follows him to Duke. The other day Okafor tweeted something to the effect: Do you follow your heart or your head? I really think we are the "heart" part of that - I think he really wants to come to KU but ultimately will follow his buddy to Duke with his "head." The head may be a reference to more playing time at Duke with Embiid's OAD status unclear.
I think Cliff Alexander goes to Illinois. Perhaps I'm reading too much into it, but it just seems curious to me to come to campus to watch your girlfriend play and not bother to check in with your future coach on an unofficial visit or to come just a little earlier to watch your future teammates play the night before. Perhaps he's worried about playing behind Ellis and Embiid? Either way, if he does choose Illinois (or even worse Depaul) I wish him luck - he will need some to see the NCAA tourney at either of those destinations.
So if we do miss on all 3, what does that mean for KU? It means we better turn the heat back up on Myles Turner. We really need a big man in this next class and he will be the next best available. He was ours to lose a few months ago - now he seems to be looking elsewhere. Specifically, several in-state schools are reportedly gaining traction - esp Texas. To me, if we miss on Alexander and Okafor we must get Turner.