Butler or Cowen...tough call.
I think Butler is gonna be a 25 goal guy IF he gets stronger over the summer and busts his Donkey. He certainly demonstrated an ability to put pucks in nets and I think that'll continue.
I expect Cowen to come in (possibly mid-season) and, while there will be an adjustment period, I think he'll be a stabilizing force.
I think Greening and Condra will both have Kelly-esque impacts. That is, they'll both play hard, solid defensive games. I think they both have slightly higher point production potential, so we'll see.
Smith will do what he does best. He'll come in as a 3rd or 4th line center and continue to play a physical game. I hope he opens up a bit and scores a few goals cause I think he has the ability.
Da Costa is a bit of a wild card. He seems to have the skill, but I think he needs to get stronger over the summer. He may or may not start with the big club. I think he needs to be consistent to stick around and he may not.
Rundblad is a wild card too. He may start in the AHL as well. He can't be as dominating (right away at least) in the NHL as he was in the SEL, but I think he'll have a solid season.
Silfverberg, IMO, will come in and play well. I think we can expect decent numbers. Dorion sounded confident that he'd come in and perform.
Gryba/Wick/Wiercioch will all start in the AHL and be high on the callup list.