"mobile mage" or "kiting mage" is not a very good idea tbh... sure if you are cassiopeia with rylais and the highest singletarget magic dps ingame then kite away, BUT LoL is all about giant cctanks, 100-0 assassins or mass dpscarries, complimented by heal/shield/mobility/cc support, what place has ahri when her full damage is only realized with W and R in closerange, otherwise she just flings Q (which is bad closerange, speedbuff or no, orb needs to travel too long, bestcase Q is hitting at the end of the range) and saves E for when she needs cc...
what use is there to poke and run with Q as Ahri? so Leblanc is allowed to stay assassin, Azir and Orianna outclass Ahri midrange without her killpressure, and if you want to play the pokegame... hell why bother to Q and run, just play Xerath / Ziggs / Lux and you dont even have to get close.
So Ahri gets to live longer in teamfights and poke more? what good does it if she needs double the time to do the same damage as the contested picks? "guys guys i am still doing damage! guys?" -everybody else already got AoE comboed, or assassinated or just cced and killed off by the adc.
the only good thing about the new ahri would be that she is safe... very safe... but not threatening, this patching and reworking has dilluted her identity to a tease mage lol... and no matter how appealing a characters appearance may be, if she does not compete, she wont be played (elise says hi)...
TLDR: the concept of a "mobile and safe mage" with the weakness "low threat" is bad, very bad.
guess i will play Ahri - the tease mage, only when i want to pamper my kda or rather death assist ratio (because no kills) while blaming my team that they die too fast for me to do anything meaningful besides running from a fight fast. (in contrast ashe and sivir as lower dps carries are useful to their team... ahri only has charm, and we know how awesome elise is with just her cocoon)