Now that he has returned to being a competent (or above competent) defenseman, I think it is highly likely that Drew Doughty makes the team.
He has the extensive resume and track-record, both in the NHL and in the Olympics. His experience and leadership will be important for what is a younger group.
This is all assuming he doesn't regress back into what he was becoming.
Chabot (LHS) - Pietrangelo (RHS)
Theodore (LHS) - Makar (RHS)
Rielly (LHS) - Doughty (RHS)
* LHS and RHS refer to what side of shot
That is a decent top 6.
That leaves Parayko, Hamilton, Ekblad, Nurse, Morrissey, and Weber to compete for 2 remaining spots (8 defensemen are taken).
Do you think there will be an effort to having an equal number of left-handed vs. right-handed shots?
I know that was important during the Babcock era. And a lot of coaches do view that set-up as the most ideal, if given the choice.
If so, then those final 2 spots will involve the following competitions:
Nurse vs. Morrissey (for the left-handed spot)
Parayko vs. Hamilton vs. Ekblad vs. Weber (for the right-handed shot)