just want to throw in my 2 cents as an avid follower of hockey:
as far as young prospects go, for the most part i think it is better for them to stay at home through their prime developing years (16-20), im a big believer in not rushing promising young players and taking them out of their comfort zone, this seems to be especially true in the case of young russians, one reason being is that the khl seems to be a much different league in terms of style and aggression, as opposed to the sm-liiga and sel, where there is more of an emphasis to play a gritty game which eventually trends towards the north american style...
two players for me that immediately come to mind are kabanov and avtsin... i will talk a bit about avtsin as kabanov's situation is well documented.. avtsin is currently playing in the pro league of the ahl and does not seem to have found his niche at all, there was a report leaked out that he was promised a few games with the montreal canadiens, whether it is true or not, at this point i really cant see that happening this season unless there is alot of injuries and trades coming... at the draft, avtsin was said to be a supremely talented forward, great technical skills in puck handling, a deadly wrist shot and speed to burn, even more important was that he seemed to be of physical maturity at about 6'2/3 and close to 180-190 lbs... at this point in his na career he seems to have gotten no better than when he first arrived, he continues to play 3rd/4th line minutes and if i had to make a bet i think he leaves for russia next year or the year after if his struggles continue...
speaking more about off ice differences there is the much bigger difference in a language barrier between russia and even sweden or finland, not even mentioning north america... many young kids in finland and sweden speak excellent english (better than many people born here in north america lol) and it seems to be almost a trend that you learn english at a very young age, russia does not have this i would say it is close to opposite and it is nowhere near encouraged to the level as in the nordic nations...
aside from language there is the massive culutural differences between russia and north america that im not going to go into because i dont live in russia and i dont want to make assumptions, so maybe our russian friends can help us with this...
having said all of that, i dont think that it is is a horrible idea for all russian kids to come over and play in chl juniors or us nt programs, there will be some who are very successful, but i think that is limited to the absolutely most talented young russians who have little to learn by staying in russia, and even then i hope that it is the hockey player who makes that decision and not his parents, or his agent, or a great legend like igor larionov who promises them that this is the best thing for their future, in reality nobody can really know what is the best for them except for the person making the decision
for now we will see how well the big three continue to play, speaking about yakupov, galchenyuk and grigorenko, only time will tell if this path they have taken will help them become good nhl players or if they will end up back in russia in a few years regretting their decisions of coming over..