I think he can become a 20/6 guy who scores and creates on good efficiency down the line and you dont really need to squint to see that.My main theory is that him playing PG has led to way higher expectations. Once Sexton is traded and Collier is the starter, I think Keyonte will be put in a more natural role, will play better, and the general fan expectations of how he should play will be more inline with who he is.
His defense may hold him back from becoming a valuable starter level player, but if he is able to even marginally improve on that end I think he has a career as a 2nd unit commander / spark plug.