I do indeed wonder about that...
Hard to say what might have been done differently and how the roster might have looked etc, but just speculating on adding him as a top wing to that team maybe is the difference between winning and losing the cup...this team has been chasing that top line draft pick for so long that maybe Cherepanov was that guy and we just never got to see it. Hopefully Kakko will be that guy now but it's rough to think of what could have been. And to take it outside of hockey, tough to see a young person with so much promise in front of them die so young.
I also have always wondered if what happened spooked the Rangers a bit from using a high draft pick on Tarasenko in 2010.
I don't really think he'd have been a franchise player, I feel like more a 70-90 point player but that would have still been far and away their best pick in decades.
I guess I was in my late 20's and the most I remember was taking a weekend trip to Annapolis with my g/f and feeling weird and out of sorts and in that "death can happen at any moment to anyone" kind of mind frame, after I heard the news.
e: the other weird thing was how often the narrative around his death shifted. He was doping, no he wasn't, he had a heart condition, no he didn't, he was being treated for a condition, but no he wasn't...back and forth about what caused his death and at this point I'm not sure what to believe about it all