Q - Orb of Deception
AERODYNAMIC TAILS : Ahri now gains a massive movement speed boost while her orb is traveling that rapidly decays over time
W - Fox-Fire
FANTASTIC FOX-FIRE : Fox-Fire's targeting system has been improved and will now attempt to acquire a new target if the original target is going to die from other Fox-Fires
YOU'RE WELCOME LICH BANE AHRI : Casting Fox-Fire no longer interferes with Ahri's basic attack animation
BASE DAMAGE PER FOX-FIRE : 40/65/90/115/140 magic damage ⇒ 50/80/110/140/170 magic damage
JUST SLIGHTLY : Slightly reduced the time between spell cast and the missile firing
DIDN'T HAPPEN ALL THE TIME : Fixed a rare bug where Ahri's third Fox-Fire wouldn't deal damage while her passive was active
E - Charm
DON'T HURT THE ONES YOU LOVE : Charmed targets no longer take +20% damage
DAMAGE : 60/90/120/150/180 magic damage ⇒ 60/95/130/165/200 magic damage
RATIO : 0.35 ability power >> 0.5 ability power
R - Spirit Rush
QUIT HEADBUTTING THE WALL AHRI : Spirit Rush is now more forgiving when dashing through or over terrain
Okay, so looking at this, and the nerfs that they plan to give her the next patch, she's still in a good position, all they did was revert an uneeded buff on Foxfire's damages and nerfed the range. The mana cost on her Orb of Deception is still negligable and now with it's extra utility it makes sense. Her W dealt 510 base damage at max rank to a single target. Those were very high base damages, now it's 420, which is much more reasonable. She still has the buffed AP ratio AND increased base damage on her charm. Also all the other tweaks that helped her like the changes on her foxfire animation, targeting system, and her spirit rush.