I am pleasantly surprised after re watching the trailer and seeing the large shadow in the shape of some large caterpillar. Obviously this is a worm god by the name Xol, the hive worm god that nokris is worshipping on mars. It’s cool how bungie is having 2 big bad guys for a small expansion! This is a great step up from us just killing the story enemy and fighting an unrelated raid boss. So hopefully either nokris or xol will survive the gaurdian onslaught on mars. If so, I believe bungie will have big plans for the hive in the future especially since Xol is the closest thing to the darkness right now. D3 is about the darkness so it could be a good story direction in bungies part.