I haven't seen much of Kokkonen, but from what I've seen I would be surprised if he ever makes it as a regular in the NHL. Kind of weird to see people expecting that of him, he's more of a "there's a chance, but it's unlikely" type of case. That said, Niemelä and Rindell aren't much higher on that list. Niemelä's production so far this season is absolutely phenomenal(he leads the league in points, a 19-year old D!) but at the same time, he's smallish, and not exceptional in the offense. He just has good instincts, knows when there's open ice and takes it. I think it will be difficult for him to transition his game to the small rink and the bigger, faster opponents he'll face especially in the NHL. Rindell, well, it's still early. I'll have more of an opinion of him later in the season.