The Last Guardian Easter Egg Found in Shadow of the Colossus Remastered

References to The Last Guardian have been added to the upcoming Shadow of the Colossus Remastered on PlayStation 4. We discovered this while streaming the opening two hours of the game.
On our way to the sixth Colossus, we got lost in the in the forest southwest of the main shrine. It was here that we found a cave that we didn’t remember existing, despite the fact that we’d played through the original game several times. At the end of the cave was one of The Last Guardian’s bar