Just use this combo now ,
Crit hit or Counter hit , 7K , 214T or 41236T. (It has same effect as 6K but for more damage)
First of all noone was used 7k as a hit for expanding the stun effect. Everyone charge it max for the 100% sure burst. (This is still unchanged) if they nerf this than it will hurt.
Noone starts a combo with 7k too. So the only nerf on 7K was on full stack Blocking advantage frames.
Otherwise i am not sure how much of a possitive buff is 66TH P+K effect in this version.
Before was 25+ frame advantage which was enough , Now it is nearly the same , exept i miss some "pro" situation here
So at all Mila stays the same. The only thing she lacks for me is that she do not have low hit combo starter , but i dont think TN shall ever gave her that.