However, some of you have pointed out a very intriguing element of this photo. My colleague David St-Jean (from Marqueur.com), also noticed it.
On this publication of the official page of the Montreal Canadiens, we can see Juraj Slafkovsky (6' 4"/218 lbs), with Arber Xhekaj (6' 4"/204 lbs), Filip Mesar and Kaiden Guhle (6' 2"/199 lbs).
Interestingly enough, Kaiden Guhle seems to have gained a few more inches (check out the picture above, he seems to be the same size as Slafkovsky and Xhekaj)
Of course, it all depends on the angle of the photo, but all indications are that he was not done growing and that he could be even more imposing and bigger than we thought. Wow!
It will be interesting to see his size in the official physical tests when training camp starts, but it is possible that Guhle is now 6 feet 4 inches, and over the 200 pound mark as well.