This year I'd say close to 0% out of camp on all of them barring injuries. I definitely think Brannstrom and Hague will get a few games this year at some point though.
It's always about minutes played for the kids. Starting there...
Glass slides in at 3C at best, and I'm sure they'll give him a look there with a focus on how well he can handle his defensive responsibilities. What makes him special is his vision on top of the rest of his game, but the Knights have a lot of options at Center so chances are he's not going to get as much ice/development time with the big club as he would in the AHL next season. So barring him dominating in camp I'd say he's somewhere around 80% playing in the AHL with a 20% chance he forces their hand.
Suzuki it's a similar deal, and he's also a smaller dude and like Glass will probably get more ice & dev time at the AHL level. Chances are he's playing there next season with a late year callup. It's just very unlikely he'd get ice time when you look at the roster ahead of him on the big club.
Now Brannstrom is the guy, IMO, who has the stars aligned. He's played against very stout competition and the nature of the Knights' blue line gives him a greater chance to break in. There is a real chance he will represent an upgrade high enough on the depth chart to stick this year. I'd put him at a 50/50 in fact, and while I know most of you think that's way too high, I will refer you to our depth chart. If they think they can trust him with the minutes, then they might well elect to slide him in knowing he will also improve moving forward and also give them an upgraded puck moving ability on the back end.
Hague made the most strides of any prospect last year, but his level of competition is not up to snuff vs what Brannstrom has faced. He's an extreme longshot to make the club, almost no chance to my eye.