I think it's much more likely that the Pacers would trade for a SF, as opposed to trading away Hibbert. I could see them making a play for Green, given our depth at the position (Turner, Wallace, Young), and offer future picks as bait.
They could trade us the expiring contracts of both Scola and Copeland, along with a future pick or two, for Green.
They signed Miles and Stuckey this off-season so they could still have a competitive team of:
Starters
PF- West
SF- Green
C- Hibbert
PG- Hill
SG- Stuckey
Bench Rotation
PF/C- Allen
C- Mahinmi
PG- Watson
SF/SG- Miles