As the doctor said that Yuzuru could resume training when the leg pain was gone, I think I know

that he has already determined to participate in NHK, whatever other people try to tell him. Maybe he is now counting the days left, considering what to do everyday.
As far as I see this practice,
https://www.youtube.com/watch?v=Y0mg7xFGHvk
I think, other than his change of 4T+3T to 3Lz+3T, he changed his biellmann spin to 'A' spin (wasn't it?)
It seems he kept his head rather clear under such condition.
If he could participate in NHK, he should give up 4S and changed it to 3S, then 4T as it is, and 3Lz+3T as in CoC, with less difficult SS. This would reduce the burden, but still there would be a strong possibility that he can secure the podium, hopefully 2nd or higher, but 3rd might be enough to go to the Final.
Withdrawal may be the best, but if he goes to NHK, he and his staff would be thinking some strategy, I hope.
Edit: He should take repeated medical checks for a while. I heard there are cases of bleeding in the brain gradually and suffering a seizure after a while, even if the person is OK right after the accident. I hope not, but just in case.
I'm doing some volume of translation of civil engineering

scowl

these months, I wanted to concentrate on the work, but it was and is hardly possible. I'm just praying for Yuzuru, his early recovery.