You take a long time on the romantic side of the story. I thought it would be a light novel more focus on the martial arts side.

Continue it. Write until the end of the war at least. It is a great story, just surprise by the time skip.

let zhao feng live but make Zhao Wei ignore him and when they cross pass, use him for his own benefice

1 is a good idea

by scanning Thor, will he get his lightning power or will he get his own asgardian power ?

1

it will be hard to chose make him finally win a national championship and destroying the plot or make him lose without him losing his motivation.