Which actress do you think is fit to play Han Soo Young character?

Go Minsi

Go Youn Jung was bad*ss as Naksu in Alchemy of Souls so I think she'll be able to handle the intense fighting scenes as Han Sooyoung well. I'm guessing that they will only make the first movie installment up till the conclusion of the King Selection though, since they don't seem to have cast Han Sooyoung's character yet. Han Sooyoung only appears as herself (and not as an avatar) after the King Selection scenario