I'm sure many people have seen the video that shows the bugged map after some down time where it has a bunch of missions, raids, and different pvp modes on it. https://www.youtube.com/watch?v=c-osssAKgEc How much do you want to bet it was an intentional leak? An employee at bungie probably got tired of hearing how empty the game feels and was like, "I'm going to show everyone what destiny will be in a few months time!" It seems plausible to me. If the game was so much more than what got released and the stuff got locked behind dlc, I'm sure you have a few disgruntled employees here and there especially when you look at how long they've been working on the game for.