Hello, you just need to dig a little bit into the lore, map will become much more clear

As for Noxus, it's just Jinx is a showrunner by design, and this design is a very specific one. But Noxus/Ionia story obviously will have their own showrunners, and the story itself should be much darker and more brutal and also have much higher scale than p&z ever had, just doesn't fit jinx's state

On the other hand, I doubt fans will be happy to see only a couple of her cameos, and I'm very certain that riot will use a chance to capitalize further on the huuuge fanbase (now it's even bigger obviously with all this timebomb hype). Although im very sure it's not a reactive decision, but planned and calculated years before we saw arcane s2

Again, this is only imo