This is from hockeybuzz.com so take it for what it is worth.
IMO it would take more for Sutter.
Umberger for Suter?
From all I am hearing Jeff Carter wants to and will indeed be a Flyer for years to come. However, the Flyers are in an interesting spot with RJ. While it is hard to imagine a Vanek-like offer sheet coming in for RJ, it is entirely possible that Holmgren and Poile (two long-time friends) could make a move that would clear up issues for each of them.
The Flyers, in need of more defensive speed, could send RJ to Nashville for Suter. Nashville needs more size and scoring upfront. I could see both players (both of whom are RFAs) thriving in their new surroundings. I see RJ Umberger very much as a Keith Primeau in his early years in Detroit. He scores the same kinds of goals, is very strong on the puck, and we are just starting to see glimpses of a bigger scoring potential. It is all there for RJ, but Philly's youth and depth may keep him from ever seeing all of that potential. As Primeau went to Carolina and became a star, I coud see RJ in Nashville do the same. And Suter, an American kid that Holmgren is very aware of, could really help solidify the need for more speed on the defensive end. The Preds have so many young d-men and with Weber demanding a huge salary this summer and other guys coming up, the Preds could part ways with Suter.