Listed Blu-Ray releases without a date

[Lynos]

Hello

Not sure if this is the right forum for this but here goes.

When going to the Releases page of certain movies, I find there is a Blu Ray release listed. All excited I click on the link only to find a page with no artwork and no release date. Here's an example:

https://www.blu-ray.com/movies/The-S...lu-ray/134393/

What is the reason for this? Does it mean a Blu-Ray release is being worked on? And if not, why do some movies have this included in their releases and some don't?

Thanks!