Jax belongs to a group that's been problematic since season 1-2. The diving fighter class. These class is either Op or useless. In fact, most diving champs have negative winrate. These class should be the next to recieve an update, but instead, Riot will turn their attention to the assassin class, which is bullshit!
"No it's not! Assassin need the rework".
The answer to this comes from Riot themselves: "we want to distinguish assassins from the other classes.". They were able to do this with the mage update, by giving mages control preassure instead of kill preasure, which is still reserved yo assassins. By reworking the dive fghters class, we could get a much more insight of what assassins should be/do.