I will say this to the balance team in hashinshin style

I don't like Hashinshin but here's my suggestion.

Passive: Replace Zoe's Passive with the W 3 missile Passive, when she casts abilities the Passive is activated (no more of a Lich Bane for a Passive).

Q: Nerf the maximum base damage, and increase the ability scalling percentage ratio.

W: Pretty much nothing changed, ability is good as it is, maybe give her W a higher cooldown if she still proves to dominate after all of these changes.

E: No idea, maybe nothing?

R: No changes, if these changes put her down too much maybe make her R available since level 1.