I'm not sure if the term breakthrough is only applied for young players but if this is not the case, my person of interest is Torchenyuk. He's not very young at the age of 25 but this is only the second KHL campaign for him. In the first one, he had 8 goals and 19 assists in 60 regular season games and +3 followed by a record of nothing except for a sad -6 in 6 play-off games.
This season, however, after 6 games, he's a PPG player with 4 goals and 2 assists. And mind you: those 6 games were not walk in the park for Avtomobilist. They played Avangard, Salavat Yulaev and Metallurg MG beating the latter two in the process.
To be honest I know nothing about him, therefore I have no idea of what is expected - maybe he's a potential superstar and my words may seem as funny as, "Dude, Messi is destined to be a good player!" but judging by his stats and news I could find about him, it seems this is not the case. We can enjoy this unexpectedly good start, I guess.