I've been trying my best to publicize this listing so that more HTF members are aware of it. That's why I mentioned it in so many of my posts to remind people of its existence.
The April 27th release date has been on my Pre-Order Listing for weeks. The Amazon link hasn't been listed on Amazon yet which isn't surprising with it being a Disney/Fox Searchlight title, but it's been active on Deep Discount.
That's great about "The Black Cauldron" finally being released on Blu-ray. Also, it's been available on Disney+ in 4K with Dolby Vision for a while now. I even purchased the iTunes 4K digital for only $4.99.