Obviously depends on how his season goes, but part of him trying to do too much might be that he is ready for the next level in terms of challenge, so maybe Laval would be good for him. That said, it's not like he is playing with bums at BU, they have a lot of drafted players and M. Celibrini could go 1st OA next year.
He is definitely an NHL calibre talent, but it remains to be seen what sort of niche he can carve out for himself. Will he just be a PP specialist, or can he round out his game and become an all around puck mover like Q Hughes? He will be a far better and more effective player if he uses his linemates more, especially at the NHL level. He may be the most skilled player on the ice in many of his NCAA games (arguably not with Celibrini on his team), but he definitely won't be in the show. If he can focus his skillset on quick transitions, playing more conservatively and in attempting to make plays at 5 on 5 from in zone offense off the point only when the situation calls for it he will be far, far better than the current style, which seems to involve lots of skating circles in around the offensive zone trying to beat the winger checking him 2-3 times while doing so.