This kind of stuff is always too early and usually off by several degrees, but CBSSports.com has a list of what they consider to be the Top 30 candidates for the NBA draft.
This year is a bit different as Duke only has two guys listed currently: Matthew Hurt and Tre Jones.
Then again, Kentucky only has two listed as well so it could be a big draft.
Or maybe someone like Vernon Carey, Wendell Moore or Cassius Stanley might emerge as radically better than expected.
Or maybe they might be around longer than expected and give Duke a powerful core in a year or two.