Vauclair retired.
I'd consider Blum, Untersander, Moser, Bodenmann, Scherwey, Diaz, Suri, Martschini, Schlumpf, Grossmann, Helbling, Furrer, Bürgler, Walker, Du Bois, Ambühl, Simion, Sciarioni, Walser, Marc&Dino Wieser as candidates.
Diaz, Blum, Furrer, Du Bois, Moser and Ambühl as strong candidates.
I would add Hofmann and Corvi to your list, and maybe Brunner (they said he was injured for four weeks and could be back for the final if Lugano makes it. And the guy always wants to play, if he feels ok he will give it a try).
The center depth looks pretty good already, Romy is the best option we have, Haas could still work out with one more year of experience, Schäppi is fine for the fourth line, Almond and Froidevaux already have WC experience and Suter has a big potential. That's already better than last year's disaster. But still, I agree that Trachsler is a big surprise. The guy is 32 and didn't fall off a cliff this season, it's crazy that he gets kicked out from his club and doesn't even get a chance for the first week of the WC training camp (we're not talking about the final roster here). Plüss could have been a possibility (he'd be perfect for the third line), but if he declined last year he will not come back now. Ambühl is also a possibility, although he's more of a winger.
Regarding goalies, there wasn't any single NLA goaltender sticking out this season. Hiller, Stephan and Huet were ok but not dominant, while Genoni and Merzlikins were dominant at time but not consistent, and Mayer was poor. Senn had a poor start but I thought he improved as he gained experience and I'd like to see him play against Slovakia if Davos is out. OVerall, I'm not too worried, between Hiller, Genoni, Stephan and Berra there should be two adequate goalies for this year and Senn and Schlegel have potential for the future.
I'm more worried about the defense. Among the players left in the NLA, Diaz and Blum would of course be huge improvements, but Du Bois isn't that quick anymore (to be fair he never was, but it's turning into a big issue) and Furrer had a poor season (although a part of it might be due to the mess Shedden created). I'm not convinced Untersander can keep up at the international level, Grossmann has always been poor for Switzerland apart from 2013, and Schlumpf is ok but a depth player at best. I'd like to see Fora or Rathgeb get a call depending on who is out first between Fribourg and Ambri, but no way they make it past the final cuts. Reinforcements from North America are needed.
And about the NHL and AHL players, here's a breakdown of the situation:
Player who only need to be out of the NHL playoffs to be available:
- Niederreiter: Will make the playoffs with home ice advantage but with a difficult opponent.
- Josi, Weber: Will make the playoffs but play Minnesota or a division champion.
- Bärtschi, Sbisa: Will not make the playoffs.
- Streit: Will make the playoffs as a big favorite is Pittsburgh wins the division, with a difficult match up if they don't.
Players who need to be out in both leagues:
- Andrighetto: Out in both leagues.
- Fiala: Will make the AHL playoffs, 50/50 chance to go past the first round. See Josi/Weber for NHL.
- Malgin, Berra: Out in both leagues, slight chance of catching up in the NHL.
- Meier, Müller: High seed in both leagues.
- Vermin, Richard: In the hunt in the NHL, currently top seed but could still be out in the AHL.
- Bertschy: High seed in the NHL, in the hunt in the AHL.
- Kukan: NHL team in the playoffs, difficult match up unless they win the division, in the hunt in the AHL.
- Siegenthaler: Same as Kukan, but unlikely to be called up.