I'm very excited for him as a prospect. So most of the things he accomplished this season have been mentioned on this thread.
I'd like to mention his 2014-2015 season's accomplishments, though:
http://www.tilastopalvelu.fi/ih/ind...ontent&view=article&id=32&stgid=2970&ssn=2015
110 points as an underager in C2 juniors. Worth noting is that his team was atrocious and placed #12 out of 18. His team scored a total of 173 goals, hence he was a part of 63.6% of his team's goals.
His team Kalpa in the 2015-2016 season was also pretty bad. In spite of this, those still are the most impressive C-junior scoring records ever in my opinion. Of course, players like Patrik Laine were already playing at B-juniors at that age.
Now, while he is a relatively small player at this point in time(5'9" right now but could always grow, obviously), what's especially interesting is the type of a player he is. Here are some things he said about himself:
His strengths are: Skating, Offensive game in the offensive zone, hockey IQ and goal scoring.
His weaknesses are: Defensive game especially in his own zone, strength/power and shot.
The strongest physical attributes and how they show in-game:
Speed is the best. It shows as explosiveness/sharpness and for the first few steps. Also very good endurance, able to play for the full duration of a match and train a lot.
There are a few things that really make me excited for this prospect. The first is that he was on a truly horrible team in both of his seasons, both as an underager. While he didn't win the scoring title during the 2014-2015 season, that one was arguably the more impressive one simply due to him playing on Jukurit. He came out of nowhere out of a relatively unknown youth system with no idea what to expect and was really surprised by how well he did against some of the best juniors in Finland.
The other thing I really like is that he actually is an extremely fast and good skater. Unlike Tolvanen, Barkov, Granlund or even Laine whose skating has been a weakness of their throughout the years. Considering that Finland has done an exceptional job with the skating of their top prospects in the recent years, it'll be great having someone who already is a speed demon but who still has exceptional offensive instincts and is no "effort grinder". As we know, speed is in very high demand in today's NHL.
Eeli Tolvanen is a comparable I'd use as he's been hyped as even a top 5 pick for the 2017 draft. When he was the same age, Tolvanen had a pretty comparable PPG to Aaltonen. However, that's not all. Tolvanen was actually playing in the best team in the league with a ridiculous goal differential.
Taking the group stages and the following league:
Leevi Aaltonen in 27 games scored 70 points. His team scored 141 goals(He participated in 49.6% of his team's goals) and allowed 134(+7 goal differential). He missed 1 game.
Eeli Tolvanen in 28 games scored 76 points. His team scored 247 goals(He participated in 30.8% of his team's goals) and allowed 83(+164 goal differential). He missed 4 games.
Note how Tolvanen comparatively took part in significantly fewer of his team's goals and also how ridiculously overpowering his team was in comparison.
After Patrik Laine, this is the Finnish prospect I'm looking forward to seeing more of the most.