You know this is bullshit, just like the 'secrets' in VoG. Nothing there. Just like the storyline. Nothing there. The 'emmersive environment' and 'progression' and... all of that. It's not there. It may be behind another five paywalls, but right now it's not there. Stop looking for it. Each time you pay for DLC, it's basically RNG that they MIGHT have actually added something. Just keep giving them 20 bucks at a time. It'll happen eventually.