Duchene, Kane, Tavares, and Stewart will be an absolute treat to watch.
Spezza and Nash are locks. Right now, Eberle, Moulson, Weiss, Ladd and O'Reilly should be there as well, along with a couple other players.. any 2 out of Horcoff, Brassard, Jones, Vermette, Galiardi, MacDonald.
But depending on which teams make the playoffs/get knocked out in the first round, this could change a lot... Remember that, as of now, guys like Iginla, Perry, Getzlaf, B.Richards, Morrow, Toews, Sharp, E.Staal, and Skinner are all potentially available. Although the vast majority, if not all, of these names will be in the playoffs.
Defense (Assuming Toronto doesn't make it, which might be premature) should stack up something like: Burns, Phaneuf, Schenn, Pietrangelo, Russel, and then someone like Philips or Foote for leadership. I wouldn't be surprised if Ellis is asked to participate, and used almost exclusively on the powerplay.
Again, this could be made much better depending on who makes the playoffs. Any of Keith, Seabrook, Campbell, Giordano, Bouwmeester, Regher, Weber, Myers, and M.Staal could be available.
Goalies I could see: Brodeur, S.Mason, Reimer... maybe Ward.