I would say your projections on both Minten and Cowan are fairly accurate. I don't think Minten has enough offensive upside to be a 2C though. I think he'll safely be a solid 3C in the mould of Dave Bolland.
Niemela - good skater, good in transition and has a crazy ability to get accurate shots through traffic to the net. Pretty good defensively. He's actually decently physical but still need to add weight and strangth. I think he'll turn into a 2nd pair guy in a few yrs. At worst, a good 3rd pair guy.
Grebenkin - this guy is so under the radar it's crazy. His production for an U20 player in the KHL is among some of the best seasons in history. He is a big, speedy winger that takes the puck to the net and has excellent playmaking ability. He might come over to NA next year, so we will get a better Guage of what his potential is. Right now he has huge top 9 potential that might make a good 3rd wheel on any of those lines. He seems like a good complimentary player.
Ty Voit - this guy is the biggest boom/bust player in our system. The kind of guy that becomes top 6 or nothing (like Bracco). Small, skilled winger who has phenomenal playmaking ability. He had a huge year in the OHL last year and was one if the top point producers. What was crazy was like 90% of his points were primary. Was supposed to play his first season in the AHL but has been injured all year. Will have to see how he progresses but he will likely end up similar to Abruzzese.
Hildeby - our top goalie prospect. He's huge at 6'7 and has good mobility. Was excellent in Sweden and is playing his 1st year for the Marlies. Started off the year dominant but has come down a bit but still having a good first year so far with a .912sv%. Looking like a good shot to be an NHL goalie with possible starter potential.
Chadwick - big D man that seemed a little raw with some possible untapped offensive potential at the draft. That seemed to be the case because he's really popped off this year in the WHL. He's gone from a .29 ppg to a .83ppg this year. Potential 3rd pair LD in about 4 yrs would be my guess.
Tverberg - this guy is interesting. One of our scouts fought for us to acquire another 7th round pick to draft this guy out of Jr.A. He went on to have 3 solid yrs in the NCAA and was near ppg player there. He also was the last cut for team Canada at the WJC which is crazy for a 7th rounder. He's near ppg in his rookie AHL season this year. He's physical, takes the puck to the net. Decent scoring touch and defensive play. Seems like a safe bet to become a good bottom 6 role player but also wouldn't shock me if he becomes what Hyman or Bunting was for the Leafs as a guy that can ride shotgun and compliment any line.
Hirvonen - smaller but stocky forward, who has decent all around skills and feisty, physical play. He's a bit of a pest who I could see being a decent bottom 6 role forward kind of in the mould of like a Nathan Gerbe. He was solid playing big minutes in pro in Finland, as well as playing a big role for Finland at the WJC with some of their top dogs. Had a rough start to his first year in the AHL this year with a couple big injuries. Will have to see how he progresses and could also get a lot faster.
Steeves - speedy forward we've been developing with the Marlies, who has a decent scoring touch. Been near ppg player all 3 yrs with them. He might be a guy similar to Lafferty who you can put in your bottom 6 and play an energy game.
Moldenhauer - speedy skilled winger with decent offensive package. Playing his 1st year in the NCAA and has pretty good production on a deep Michigan squad with 19pts in 32 games. Middle 6 potential winger but is probably a similar level to Voit as in a guy that plays in an offensive role here or bust.
Kokkonen, Villeneuve and Koster are all guys that need more development that could all be potential bottom pair D men.
Everyone else are long shots to seeing NHL action