I want the old ult back with some of the mechanics of the new. Mainly because this new ult, even if it is powerful in terms of utility, it does not fit her kit and does not make her a better ADC or a better Top, it doesn't even make her a good midlaner, because there are many better options for that role than her (maybe it makes her a better jungler instead).
The thing is, for this rework we are paying a price; the Q passive proc is good, but for this reason we lost her old AoE blind, also we have lost 3 of the things that helped A LOT during a fight, her assasination capacity , her execution capacity and her ability to scape. Also if you consider that in order to get full advantage of the ult you need homeguard (get to minute 20 now), and to get homeguard you need to use recall, so it is not only 2 seconds of channeling time, it is 10 seconds). Still I like the changes on her base abilities, but her ult disrupts her gameplay too much. I was already able to get up to 700 MS with her old ult (without boots)... so it pretty much make little sense for me to take all the capacities she already had (assasination, chase, scape, AoE execution and roam) and make her do only one of the things she was already able to do.
I must say I have fun playing the new Quinn, but I play her in the jungle as I always did (I ended 10-2-8), and her ult makes her a better jungler, makes her better to get into the lane, but makes her worst when a team fight comes or when you have to face an assassin, I played her on the lane and I had a lot of troubles, mainly because everyone can notice when she is missing from a lane, in the jungle I don't have these problems and with the new changes I know I will do quite well on the jungle (because the new Q stops monsters from attacking), but it isn't healthy for her, and now she will perform worst until minute 20, also now everytime you play her you feel the need to go B once each minute just to go to somewhere else, which doesn't feel healthy either.