Skye should have a longer cooldown than the other initis. Her current form is fair, For the dog I think you should either give her a tiny bit more dog time, let her look around while lunging again, or make it so lunging toward the end of the time extends it until the dog lands from lunging like with gekko ult.
Buff breach, Make his flashes pop faster and give him his old aftershock back (3 bursts.)
Kayo's fine, Maybe one more molly pulse to make his stall a tad better? (as in 4 bursts rather than the 3, not a 2nd molly.)
Sova and Fade are fine as is, their nerfs were fair and needed and I think they're in a good spot.
For duelists
Nerf neon, keep her stun as is, give her less sprint time, and maybe remove the speed boost on the ult or make it so ult boosts less than sprinting does.
Nerf waylay, give her 1 dash no matter what bringing her more in line with jett/raze and making them both situationally Viable rather than waylay just outshining the other.
Buff yoru, give him 2 flashes but keep the TP time the same and lower the duration of his ult.
Buff Jett, This I'm not sure about. But I do know she needs something to bring her in line with the rest of the cast.
For sentis
Buff cypher, make his trips reveal after a shorter amount of time but not stun at the end, keep everything else the same.
Buff vyse, give her unlimited range on her thorns again but keep everything else the same.
KJ is fine
Sage is fine
Give Chamber 2 trips to keep him in line with the now buffed sentis. He's in a spot where he's only good because they're really bad, so he'll need something to let him keep up. Cypher gets 2 trips, vyse gets 2 thorns, KJ gets 2 info abilities, sage gets 2 slows, Give chamber 2 trips. Everything else is fine.
Buff veto so that half a second before it hits you, veto's trip is unbreakable.
Controllers are actually in a good spot, I wouldn't say any of them are in a truly awful spot aside from miks.
Buff miks so that his drones have more health, and his ult blinds rather than slows. This gives people reasons to actually make miks lineups in order to stun enemies from long ranges or heal allies from long ranges. Also increase his stim time, I feel it's too short despite it refreshing after kills.