First act (3 episodes) came out on Netflix today. 2nd act in a week, and last act a week after that
Alternate sources: Go to Yandex (dot) com and search “Arcane Season 2 stream online free”. Yandex is a great resource in general for any free streaming, the first link always works perfect
That was incredible. If they stick the landing on this series, it will be a massive achievement for animation.