So I was looking on the news feed on chrome to see if any leaked news came out and well there is a leaked video
[spoiler]it shows the creation and of a vex goblin and it looks awesome btw it's an in game cutscene[/spoiler]
https://www.google.com/amp/www.gamesradar.com/amp/leaked-destiny-video-might-tease-the-vex-dlc-that-never-was/?client=safari
Page of where I found it
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I'm pretty sure everyone and their mother knows about it, so posting it here is kinda pointless.