I think this upcoming training camp is going to be pivotal for a few players specifically. I believe that Dvorsky could make the roster provided he has a great camp (they won't rush him), Snuggerud will get every opportunity to make the roster (won't rush him either/assuming he signs), but I think this will be a make or break year for a few players specifically. McGing has slowly matured in the AHL, shown a bit of what he can do in the NHL, seemingly has rounded out his game to be an effective 4th liner if nothing else - however this is his last year to make a statement in camp. After this year, I think he will be relegated to AHL vet and will sparingly see callups. He has the ability to be as effective as Walker, he is speedy on the puck, hounds pretty well from limited viewings, but he needs to add an edge to his game to squeak into the roster. With the injury to Sundqvist, this is his last chance to earn a spot.
Alongside of that, this is likely Alexandrov's last chance to make a statement here. He's only 23, but he will turn 24 in camp and he should've had a more positive impact when put into the lineup. He can be a reliable 2-way player as evident in his play from both junior and AHL, but he is just so passive and unsure when he is on the NHL lineup. His offensive ceiling is higher than McGing, Walker, Toropchenko, potentially maybe Kapanen, and somewhere in line with Blais. When I compare him to Blais, I think their trajectories map on similarly. Both have nice offensive instincts and have showed an ability at the lower leagues to be effective scorers, Blais did so when traded back to the Blues but lost his way unfortunately. Alexandrov has the potential to be a 30 point 3rd liner, but he's also going to need to develop an edge and good board-work to claim a spot. I think he and McGing will be fighting it out for a chance at a roster spot provided the young guys don't immediately take it.
There are others in the system who have some more time to earn a spot, but I don't think there is anyone else who realistically has to make noise come training camp. Maybe Tucker, but he would have to substantially improve his skating to even be thought of for a top 6 role. His situation is unfortunate because he is such a nice surprise at his draft ranking and he does have tools to be useful, but his skating has halted any chance of him holding down a consistent spot.