I stand by what I said. If he proves me wrong, kudos to him but, I can't see it happening.
The problem is the jump up in speed from the AHL to the NHL. In the AHL, Roy's skating is about average and he is able to create the time and space he needs to use his superior hand skills. In the NHL, Roy's skating is well below average and he is, at least as of now, unable to create the necessary time and space to make the plays he could in the AHL and in junior. Roy was measurably a step behind the play during his short call up. He couldn't jump into the open space when same was available and generally looked like a deer in the headlights. The NHL game is simply too fast for him, as it is for a majority of the players in the AHL.
While it's too early to close the book on Roy, his window of opportunity is closing and closing fast. There are way too many other prospects both in Laval and elsewhere ( Demidov, Hage, Beck, Tuch, Davidson, etc.) who play at a much more dramatic pace and who will soon (or have already) passed Roy on the team's depth chart. If he's going to have a future in Montreal he's going to have to make it as a top six, offensive player. The competition will be fierce. Unless he can find that extra gear, his chances of playing in the NHL, at least for Montreal, are looking bleak.