A couple of guys here were heralding this guy already two years ago, and finally the big season came. He went from 8 points in 30 games to 27 goals and 59 points in 57 games.
There is an official rookie award for Finnish league, but not any "breakthrough award". I think there would be a shot for it (it is hard for a goalie to get the rookie award so this might be better suited for goalies)...