By the way, I actually saw plastic Syberia 3 boxes for PS4 at a Dutch toy store (Intertoys, a physical shop!) last week. I was quite stunned to see it there!
As it contained a Blu-ray disk, I assume it contains the full game, and doesn't require Steam downloads? I don't own a PS4, so I've got no clue.
It's good to know that there is still interest in putting offbeat console titles on the shelves of stores.
It's currently at #140 in Intertoys' list of 173 PS4 games they stock, in terms of number of sales, so not exactly a smash!