Given their respective talents & lack of experience at wing, I would expect Crosby-Getzlaf-Toews-Tavares as centers.
I think HC was salivating for Crosby-Stamkos in 2014 so I would expect that pairing along with Getzlaf-Perry, Carter-Toews, & Seguin-Benn. I would be shocked if Perry didn't make the team given his history with HC & his current form.
In addition to Perry, Giroux, Hall, & Duchene would be my guesses for the remaining forward positions given their production, position & youth. Marchand has had a great year, is a LW, & good relationship with HC, so he's a possibility but is also older.
With Vlasic-Doughty & Keith-Weber, there are one R/L d-pairing left & a 7th defenseman left with likely Brodie (L), Giordano (L), Pietrangelo (R), Subban (R), Burns (R), Seabrook (R) & Letang (R) in the running.
On talent alone, I would expect Pietrangelo & Subban to be picked. Burns is intriguing because of his versatility in being able to play forward. But I think HC will pick another left defenseman. I am giving the nod to Brodie for his youth, but Giordano is another possibility.
I don't think they will move from the previous leadership group: Crosby (C), Toews (A) & Weber (A)
Hall-Crosby*-Stamkos
Giroux-Getzlaf-Perry
Carter-Toews-Bergeron
Benn-Tavares-Seguin
Duchene
Vlasic-Doughty
Keith-Weber
Pietrangelo-Subban**
Brodie
*If Bergeron can play right wing, I wouldn't be surprised to see Bergeron-Crosby-Stamkos, Hall-Getzlaf-Perry, Carter-Toews-Giroux
**I think HC is pretty committed to strict L/R pairings but I can't give Brodie the nod over Pietrangelo-Subban.