I can not see Cedric returning, I think he has been playing hurt the last 2 seasons and he has a daughter and a family, I think he will probably move on, but who knows. It is possible that Dou Gueye could possibly return if he would like and that would give us some quality depth, specifically at the forward position.
Gordon and Butts both had their moments, I think with more time they will continue to improve, but Gordon seems to be primarily a spot up shooter, Butts gives us a little more in the way of athleticism off of the bench. He can drive as well as shoot. He is also less of a liability on defense as Gordon. But I do believe both Gordon and Butts if they return will both see quality minutes with Cadwell. Richards will spell Akuwba and I think you will also see Au with some big minutes as long as he is healthy. I think he is a better player than what he showed this year. I think the injury really slowed him down.
That would give you 10 guys with minutes, you also have Garnett, Wesley, and Thomas in the mix. Now if Geuye and/or Russell return that could throw a huge monkey wrench into the above.
Then you through Joe Charles and Carter Domingue into the mix and I am not sure how they will work into the lineup. I think depending on how they progress you could see them gaining minutes as the season moves along either through injury or production from they guys above like Gordon/Butts/Cadwell, etc.