Could Riot go further with their ammo systems?

With the Graves and Jhin reworks and releases, we have seen the new ammo systems come into play. Such systems make sense on gun-toting champs, and I wonder... will Riot keep adding ammo systems to champs where it makes sense?

The current gun-toting champions without ammo systems are . Lucian would not fit as well as the others with an ammo system since his guns do not use bullets. For the others, however, they could be given ammo systems to make their playstyles more unique.

To be honest, I really saw Caitlyn with a system like Jhin. Powerful, calculated shots befitting a sniper. Perhaps an alternative could be a bonus to damage for consecutive shots against a target doing more damage, sort of rewarding "accuracy".

Jinx's guns might not need a seperate ammo system. The rockets have reduced attack speed, and rocket launchers usually only load one shot at once. The minigun might do with a small change, but it seems allright for now.

Miss Fortune's guns could have separate shot cooldown timers, firing independently of each other but not at the same time.This could contribute towards a unique playstyle wherein MF could split focus with the two guns.

TBH I really have no idea if Tristana would work on an ammo system.

Thanks for reading, if I missed anybody or if you have any additional thoughts please post them down below.

TL;DR Could Riot add more ammo systems to add unique gameplay?