yes i know blizzard said they would never do this, this is just for fun and maybe i will change their minds one day…who knows… they also said they would never have a FFA mode and look at us now 
Jetpack cat:
Stats:
50 HP
0 Armor
100 Shields
General description:
Jetpack cat is unique when it comes to movement, you do not need to press WASD to move, In fact, Jetpack cat is always moving, its jet is always active and it will move wherever your looking at all times, if you look up, you will go up, if you look down, you will go down, if you turn left, you will turn, etc Just like d.va during her boosters works
Forwards key increases thrust, by holding the forwards key you will increase your speed for as long as you hold the key
The backwards key reduces thrust, you can use it to go slower if you wished so,
The left and right key are pitch and raw, You can use them to do air manuvers to dodge attacks
Primary Fire:
Jetpack cat´s jetpack has dual energy cannons in front with a similar firerate to bastion in recon mode,
The damage they do is arround 10 per shot, they shoot in brusts of two, from the two mouths of the cannons,
it has infinite ammo (this is due to the fact that its really hard to aim it since your constantly moving arround)
Passive
Holding spacebar while playing jetpack cat will get him to hover in place and stop moving for as long as you hold the key, this is incredibly dangerous due to your low HP, but this helps with accuracy as your able to aim easier while your hovering
Ability 1: Bombardmenet
Jetpack cat will drop a payload of 6 bombs after you press the key, Each one of this bombs is dropped every 0.3 seconds after you press the key, each bomb does 120 damage if it hits with arround 40 damage of splash Cooldown of 6 seconds
Ability 2: Swipe
Jetpack cat will jump off its jetpack, leaving it hovering in the air, and leap directly where your looking at, if it were to come in contact with an enemy, jetpack cat will grab onto them and repetedly swipe them in the face, causing a knockdown and 50 damage in impact, and other 150 over the course of 1 - 2 seconds (similar to how the assassin works, this does leave it vulnerable as it can be killed during the attack) after it is done, it will jump in the air back to where its jetpack is
Ultimate: Dive bomb
Jetpack cat will jump off its jetpack, while enabling the self destruct secuence, and the jetpack will on its own fly in a straight line and explode in contact with the nearest surface, If it hits something it would do arround 500 damage in a direct hit,
once the jetpack exploded, jetpack cat will get another one,
note: While jetpack cat is without its jetpack, it is immune to damage and it cant be controlled, you would only see from its POV whenever you landed after you dropped, the jetpack is still destroyeable and has 100 shields when jetpack cat is not on it, therefore adding counterplay to the ability
Note: THe numbers are not final and are up for discussion, i just added them to provide context and let you imagine the idea better,
and its just for fun, i dont think blizzard will ever add jetpack cat in