Preorder Heavensward

I would like to preorder the new expansion for Heavensward. The one I want is the digital collectors edition for PS4. But I can't find where to preorder that one.

On the Heavensward website, it shows there is one available.
na.finalfantasyxiv.com/heavensward/

But when I go to the square store website, I don't see anything about the digital PS4 edition.
https://store.na.square-enix.com/pro...-s-edition-ps4

So can anyone help me out with this?

it has not yet been released,

Has there been any word on when I can get it?