In real clothes yes... But shoulder pads? Impossible to tell. 5 years ago, only by having a pair of Bauer shoulder pads instead of the CCM and you look bigger on the ice, because they are simply bigger. Cant say for the past 2-3 years, because I am not following the stock as much as I was before.
There are many possible options to see if he is bigger... Lets say he is more quick, shoot is better, yes it can be technique but can be weights, if you see him in real clothes, etc. However, you cant see if he gained muscles but watching him in all his hockey stock on a video on ice.
Reminds me one of my friend who played professionaly. 6f3 190 lbs.. the upper body is really not big, but on ice, he looks like a monster due to all his padding and you could not even tell if you see him in the street.