These Ahri changes do not help her become more mage-y.
Ok, so here are the changes:
Orb of Deception (Q) has a new effect: "Ahri gains movement speed while her orb travelling"
[Note: At level 1 and rank 1 of Q, movement speed spikes from 330 (base) up to 545 then rapidly down to 410 until the orb returns.]
Foxfire (W) damage increased to 50/80/110/140/170 from 40/65/90/115/140
Charm (E) AP ratio increased to .5 from .35
Charm (E) no longer amplifies damage,
Charm (E) damage increased to 60/90/120/150/200 from 60/90/120/150/180
And this is the change to her damage: (Does not include amplify from DFG item.)
Numbers presented first are the PBE numbers. Numbers presented second are live Charm's amplified damage.
AT MAX LEVEL:
Orb of Deception (max damage) 280 (+ 70% AP) 336 (+ 84% AP)
Change: 56 (+ 14% AP) damage is lost.
Fox-Fire (max damage) 272 (+ 64% AP) 269 (+ 76.8% AP)
Change: Deal 3 damage more, but lose out on the added (+12.8 %) AP ratio.
Charm 200 (+ 50% AP) 180 (+ 35% AP)
Change: 20 (+15%) more damage.
Spirit Rush (max damage) 450 (+ 90% AP) 540 (+ 108% AP)
Change: 90 (+18% AP) damage lost.
Overall, 123 (+29.8% AP) damage is LOST. At 500 AP, that totals to 273 damage lost. Remember this doesn't include damage lost from DFG removal.
But, how does this nerf make her more magey? It makes her weaker, so it's harder to 100-0 somebody, which weakens her assassin aspect, but that does not help her become more magey.
Charm's base damage and AP ratio increase doesn't help much either, since Charm is the skill that gets 1 point early and maxed last. It also has the longest cooldown aside from her ult, meaning it gets used less. This damage increase should be in Orb of Deception.
Also, assassin Ahri needs less spell rotations to do her job, which means assassin Ahri doesn't need as much mana. A kite/mage Ahri will have to spam her skills to be effective, so I suggest lowering her mana costs and/or buffing her regen if they want to make her mage aspect stronger. MAYBE, lower cooldowns too.
I prefer mage Ahri to assassin Ahri. I don't like when a champ is so reliant on one skill. This also gives her more build paths. I support transitioning Ahri into more of a mage role, but these current changes do not succeed at that.