CITY CREST ICONS? (CAN A RIOTER ELABORATE PLEASE?)

Hey everyone, So it has recently come to my attention that there are only three crests for the city-states in League (Well the ones recognized by the League of Legends.) Anyway, I noticed that in the store the only three were Shurima, Bilgewater, and the Shadow Isles. There are none for Bandle City, Demacia, Noxus, Freljord, Ionia, Piltover, and Zaun. For me this is HUGE because I one-trick Ekko (Yes I realize there is an Ekko summoner icon). I'm not sure if they were available at one point and maybe they just got retired or something but if they have never existed is it possible that they will be getting made in the future? I really want to know because the account I play is going to be reserved only for the champions that come from Zaun in the lore and I plan on trying to make a community based around people who are into the lore of Zaun and that only play champions from Zaun. This may be like counter intuitive to the reason the lovely people at Riot make other champions but im just so fascinated by Zaun's lore that I want to do something like this and sort of dedicate my champion pool over to Zaun lol. I feel like a bit of a dork but hey...don't hire such great writers if you wanted me to play everyone else ;-;. Anyways if a Rioter could maybe elaborate on this that would be fantastic, I will check back everyday to see if anyone responds so don't be afraid to voice ur awesome opinons. And does anyone else want to see all of the City Crests implemented into the game? I cant be the only on right? Anyways, have a good day everyone and good luck in solo queue. ^_^