There is a monthly newsletter sent by email (by reply@engage.minecraft.net) titled "Back again for the monthly chat". However, currently, there is no way to subscribe to it.

Considering that this monthly newsletter still exists, and that some people are clearly working on it, I doubt that gatekeeping it is intentional.

I reached out the Minecraft Support (for an unrelated issue - my subscription was canceled without me doing anything in 2023, yet people still receive the newsletter), here are bits of their both replies:

For starters I need to let you know that at this point once you're un-subscribed from the newsletter, there's no way of resubscribing.

Please know that we understand your concern as you don't remember cancelling the subscription, however, it is important to reiterate that no new subscriptions can be made and once a subscription is cancelled, we don't have a way to include a player back.

Note that subscribing to these newsletters do not subscribe you to the "Back again for the monthly chat" newsletter - these are independent:

• The Minecraft Legends newsletter (https://www.minecraft.net/minecraft-legends-news)
• The Minecraft Movie neswletter (https://www.minecraft.net/minecraft-movie)
• The Minecraft Live newsletter (https://www.minecraft.net/live)
• The Minecraft Experience newsletter (https://www.minecraftexperience.com)

I am unsure how I subscribed to it in 2020 in the first place, and I cannot find any subscriber remembering how they did nor any information about it - so I could not help more.