My only concern with the patch notes

So while I am fully aware that they patch just came out and it will take a while to see if what I think is true, but I am very worried about Katarina in the patch notes.

While I agree that we haven't seen her a in a while (a few patches, at least) and she may be in need of some love, I don't think this Q buff was the way to do it. My reasoning is this: by buffing a mana less champion in this way, you have SEVERELY upgraded her laning phase. "Kat's success cases are defined by her ability to roam." By allowing her Q to deal full damage on every bounce, you have allowed her to push her lane faster and potentially roam, which is Riots idea of what makes a successful Katarina.

But that isn't the only situation that can occur. Katarina being manaless means the ONLY thing gating her harass is cool downs. In previous patches, getting the blade to hit you last was the only way you could manage not getting poked out of lane over and over again. The blade is pretty much guaranteed to hit an opponent and now it is going to deal full damage. Now, Katarina will be able to zone her opponent MUCH harder and allow her to straight up win the lane independent of her roaming potential.

I don't think we will go 3 days before katarina is perma ban because there is no way to deal with her. Just a friendly prediction; we'll see what happens.