I think he may go to 4CC to try 3 quads, I don't think it would be the best idea to go to worlds and try 3 quads for the first time
Okay... Stupid question then maybe, but is that actually up to him? If he does well enough for Worlds, is he allowed to go to 4CC as well? Or is it up to the Japanese skating federation to say, No you cannot go to 4CC because we need that spot to give to someone who needs the experience more (say, numbers 4,5,6 at nationals).