They look at Sean Avery, Erik Christensen and Mats Zuccarello as player who will be fighting for roster spots.
The top line will have Brad Richards, Marian Gaborik and likely either Ruslan Fedotenko or Wojtek Wolski. The second line will be the Pack Line. The third line will likely be Derek Stepan and either Feds or WW, with a spot open on the right wing. The fourth line will likely be Brandon Prust, Brian Boyle and Mike Rupp.
That really only leaves one spot in the lineup. The guy who gets that spot will be the one who earns it in training camp and the preseason. For the other two, being healthy scratches or spending some time with the Whale. If I had to pick one of them to make it, I would pick Zucc with the best chance and Erik Christensen with the worst.