It knows we are it’s only hope. I don’t think it will do anything. I have a suspicion that using its Light breaks the Shell. It’s assumed more were made since post Red War there were a ton of revivals. Although it’s hard to say. There were Ghost without Guardians and some stopped looking to work for the Speaker. I’m sure those Ghosts found Guardians amongst the dead. I just can’t recall how many Guardians there are now. I know it was mentioned somewhere but the number I’m thinking seems too high. It’s going to end in another Collapse. The Vision cutscene shows humanity suffering underwater, after the black pyramids fall into water. Notably, these ships are all the same size. The big mothership is missing. I’m not sure what the water represents. Could be the Vex, a liquid race. Could be Titan, a liquid surface with a secret hidden underneath. Could be an Earth ocean. The Traveler being on Io for the final Showdown. You can see one larger pyramid shadow then the other. Meaning the mothership is coming. Sometime between now and then, the Traveler heals itself. The major beats are Nessus being consumed, beating the small Ships, Humanity suffers, a whole Traveler faces down the Darkness. The Shell is absolutely studded with power crystals. To replace all that at that scale? Would take...millions. Like the population of the City. I foresee a major twist.

I think it represents humanity “Drowning in the Deep” as Xol said we would. And the part about Io is from the initial Collapse; The Traveler was terraforming Io when the Darkness arrived, so it had to abandon Io in the middle of the process. It was originally going to be an ocean world, judging by the skeletons and other things you can see around Echo Mesa.