Would like to reignite the discussion by trying to outline what the lineup should look like at the moment - the most notable omission would be Sven Baertschi as I believe that he just hasn't done enough to be part of the squad.
I can see it happen. Niederreiter, Moser, Wick, Brunner and Hollenstein are pretty much locks, then you have Walker, Ambühl or Bieber who play a different role, and Suri who is hard to pass. That's a lot of competition for a player who is not familiar with the playing system and has no existing chemistry.
Moreover, I don't really think that Sbisa and Weber are much more than 7th or 8th defensemen, respectively, on the big ice surface.
Most will agree on Weber. He's way below the other NHL defensemen and I would even say below some NLA ones (at least Seger and Vauclair, and even though I'm not crazy about having Blindenbacher, Furrer or Du Bois at the Olympics, I'd take them before Weber). And with Josi, Diaz, Streit and Seger, he's not exactly needed to provide offense from the blueline.
Regarding Sbisa, I agree he's more of a small ice player, but as there is no reason to break the Josi-Diaz and Seger-Vauclair pairs we saw last spring, and there's the fact he complets Streit pretty well, I think he belongs in the top 6.
Moser - Plüss - Niederreiter
Hollenstein -
i - Brunner
Suri - Ambühl - Wick
B. Plüss - Monnet - Sprunger
(Walker, Romy, Bürgler)
Your first and third line make sense, although I think that Plüss,
i and Romy are set to be the top 3 centers and Ambühl will play on the wing, but I can see major flaws in the other two:
Although the idea of Brunner playing with
i is intriguing, they both have trouble handling physical play are not the best defensive players either. As we don't have that many forwards who are weak defensively, I think we can afford not to have two on the same line.
Regarding the 4th line, first we can say that none of the players you name are 4th line players, and a strong case can also be made against them in an offensive role. When Benny Plüss made the WC team in 2012, many expected him to be unable to translate his good NLA play to the next level, and they were proven right. I've argued many times against Sprunger in the national team (pure offensive player who doesn't produce much in international hockey) and don't feel the need to do it again, although I'll repeat my arguments if anyone requests it. Monnet has the biggest chance of the three, but others are simply better than him in an offensive role. He was scratched during the world championship last year, so I have a hard time seeing him make the team with Wick, Romy and Brunner available (this point if also true for Bürgler).