It appears that the Hidden Abilities of Passimian and Oranguru are currently being released over Pokémon Bank.

Serebii Update: Passimian and Oranguru with their Hidden Abilities of Defiant and Symbiosis respectively are now being distributed via Pokémon Bank. Details @ https://t.co/gDbXkHSvkT pic.twitter.com/XHbRuVW7el

— Serebii.net (@SerebiiNet) March 28, 2019

However, no date has been given as to when the distribution will end. However, it is safe to assume that it will continue until the end of October, considering the length of the previous Pokémon Bank event which distributed Hidden Ability Alola starters. What are your thoughts on these new Hidden Abilities on Oranguru and Passimian?

Source: Daily.pokecommunity