(shrugging Legacy off)... ahem...
I personally think that Gretzky's record of 39 goals in 50 games could be broken. Especially these days when overall more pucks are going in the net than ever before, and players are getting bigger and stronger all the time.
That being said, it's not so much physique that makes the hockey player good, but what is between the ears. This is true in most sports anyway.