Okay this might be a bit of a stretch, but I think there is a possibility that destiny 2 will allow us to play using a new fourth class. This is just a theory but on July 7th, 2017(like a week a ago). Bungie released multiple wallpapers in honor of there annual "Bungie Day". One of the images they released contained, what we can only assume, was a group of guardians (Titans, Warlocks, and Hunters), walking through the city. Upon inspecting the image i noticed that behind a few of the guardians there were signs that showed the symbols for all three of the guardian classes. The thing that really surprised me though was that of to the right of the three signs, there was a fourth sign showing a unknown symbol. So i was thinking, if the signs were meant to represent the guardian classes why would they show four signs, if not to give a hint to the player that there will be another class. Another theory is that the symbol could be of a older class of guardian that doesn't exist anymore(would make since due to its being away from the other 3). This is a pretty crazy theory and i'm not to big on the lore of destiny but if any of you know what the symbol means please let me know. Sincerely, romantoman1234