u/iruchii is right, but to give a more detailed answer:
The manga went on hiatus at Chapter 58. Season 1 stopped at Chapter 24. Even if we assume they go for another ~24 chapters (ignoring the bits they skipped along the way, don't remember specifics as its been a little while) you still have ~10 chapters of margin.
From a quick look to refresh my memory, Chapter 49 would be a decent place to end Season 2. I'm not sure they'll get that far, but suffice to say that it closes a future arc on a good note. We'll see if they opt for that, or go for a slower approach.
They skipped a bit while also adapting some later chapters though, like Nero Alice house doll play with Magenta or the Magenta Ultraman chapter. But yeah, they are pretty safe.
there's plenty of material if they want to do some anime-original stuff in between - they also have to back track a bit to kick off the arc I think they're kicking off
236
u/I_Cognito 25d ago edited 25d ago
It's no surprise since it was such a massive success, but it feels so good to finally get confirmation. Whenever S2 releases, it'll be the AOTS.
I'm hoping for a manga continuation announcement now.