I must admit, I haven't followed SHL much this year, so I'm basing this on stats, previous performance and what I've read.
When it comes to NHLers, I assume the Sedins will decline. They have had bad form, Henrik's been injured and they already have thier WC gold from last year.
Bäckström might return since he wants revenge from missing the gold medal game.
Tobias Enström seems to more or less have retired from the NT, since he has declined invites the last couple of years and didn't even want to go to the OG!
The rest of the available NHL players are not established enough to decline, IMO. Maybe Erik Karlsson, but he hasn't won anything with NT yet. Might be hungry for gold.
Goalies:
Jhonas Enroth
Robin Lehner
Linus Ullmark
Enroth and Lehner will battle it out for the number one spot, like Enroth and Markström last year
Erik Karlsson - Staffan Kronwall (C)
Oliver Ekman-Larsson - Henrik Tallinder
Mattias Ekholm - Patrik Herlsey
Mikael Wikstand
Kronwall will be the steady rock while Karlsson goes on his offensive adventures. Ekman-Larsson will get an offensive role with Tallinder taking care of the D. As far as I understand, Hersley have been on a goal scoring tear in the SHL, should earn him a place on the NT. Mikael Wikstand seems to have been performing quite well since coming to Frölunda, 10 pts in 16 games, impressive. It is either him or Klingberg for the 7th spot
Marcus Johansson - Nicklas Bäckström (A) - Patric Hörnqvist
Mikael Backlund - Elias Lindholm - Mika Zibanejad
Simon Hjalmarsson - William Karlsson - Pär Arlbrandt
Jimmie Ericsson (A) - Niklas Persson - Fredrik Pettersson
Oscar Möller
Keeping the Johansson - Bäckström pairing intact, think Hörnqvist might complement them nicely.
Second line is the young gun line, time for Lindholm and Zibanejad to prove themselves in the NT.
The Hjalmarsson/Arlbrandt duo is tearing up the SHL again this year, give them promising center W. Karlsson and will get scoring from three lines
Fourth line are defensively responsible veterans, will be used on the PK and when defending leads.