From everything I've heard, I don't think there's any scenario where both Ayo and Miller are here next year, given the talk that Ayo is gone, regardless of where/if he is drafted. I think the starting lineup at the beginning of the year is:
Frazier
Miller
Griffin
Bezhanishvili
Cockburn
However, I think it won't take long before it's
Curbelo
Frazier
Miller
Griffin
Cockburn
Call me crazy, but I think that unless Giorgi develops a consistent outside shot, he's more valuable coming off the bench to back up Kofi. If he stays at the 4, we really need him to be a threat with the outside shot to open up the lane for our guards to drive to the basket. If he does develop the shot, I think that it really doesn't matter who starts the game, as Curbelo and Frazier will get heavy minutes at the 1, Frazier and Miller heavy minutes at the 2, Miller and Griffin at the 3, Giorgi and Griffin at the 4 and Kofi and Giorgi at the 5. The biggest problem will be figuring out how to get the rest meaningful minutes.
I do think that someone will transfer after this year, the most likely being Jones or Bosmans-Verdonk. I have the feeling that Hamlin stays, and I can't see Hutchinson or Grandison leaving after sitting out a year, and I really don't see Hawkins backing out of his commitment. But these decisions aren't always based on playing time, and personal reasons, which are hard to predict, often figure into the picture.