- Writing for season 2 started on January 2018. *
- Filming for season 2 ended on November 2018. *
After that, they went into post-production and it was completed in April this year.
- The trailer with the date announcement was released on April 26, 2019 — 33 years to the day after the day the Chernobyl disaster occurred.
- You guys already figured out the connection of the season 1 release date on Michael's suicide.
At this point, we can't turn a blind eye to what's going on with their clever game here. It is not a coincidence, they are purposefully doing this.
In order to achieve this, they either have to plan this ahead and fix their production/post-production dates and go according to the plan or (I really don't want to think this as a possibility but... here we go) they happened to finish filming it right at the perfect date and decided to go for it as an impulse decision.
I really don't think this is a coincidence based on how they put everything in perfect harmony...timeline-wise.