I do honestly think we can see Hill break 20ppg. He'll still be our #1 scoring option.
He'll likely get more opportunities with what should be much better team rebounding. He'll be more physically imposing and thus more likely to attack the basket and draw fouls. He won't be keyed on as much by opposing defenses since there will be other players who can score to defend. Finally, what is 20ppg vs. 18ppg? The difference of one basket or two free throws. I can see him getting that on a nightly basis over the course of a season.
Our team average PPG should go up over last season, and though Black/Thorne/Abrams should account for some of that I think Hill will still get his, as well. I can see team scoring breaking out something like this:
Hill - 20 pts/game
JCL - 14
Thorne - 12
Black - 9
Abrams - 7.5
Finke - 7.5
Morgan - 6
Jordan - 4.5
DJW - 4.5
Nichols - 3
Tate - 1.5
Lucas - 1.5
Austin - 1
Liss - 0.5
That's what I think could happen. Note that even though the pts/game average is closer to 90, that doesn't account for the fact that not all players play in every game. I'd expect our per game scoring average to jump to around 78 ppg. Last year we were at 72. With an expectation of improvements in rebounding and defense, that translates to a lot more wins.