Edit 1: Because a lot of people are mistaking these as the first 2 dlcs, I'll make it clear here: I am talking about the MAJOR expansions that will be coming out. Akin to TTK and RoI. NOT the Osiris and Rasputin dlcs we will get within year 1. (Sorry if this is a double post. I am unsure if the first posted at all) So I've been thinking about what the future of Destiny 2 holds for us and have come up with a very possible theory on what D2's expansions and consequently D3 story will contain. We know that the darkness is the big grand enemy of Destiny and that we will most likely be unable to fend it off by ourselves. This is why I believe that the expansions (year 2 and 3, not the Osiris and Rasputin ones) will have us attempting to ally ourselves with the fallen, and possibly the taken/hive or vex. [b][u]The Fallen[/u]:[/b] Most people have always speculated that an alliance with the fallen is incredibly likely and I do too. Variks allied himself with us, and so did the wolves until Skolas came along. And in one mission in D2, if you help a captain fight a knight he will not attack you and give what he was actively STOPPING you from taking. So I think that in expansion 1 we will meet with Uldran (who is probably leading the new united fallen). And by helping him find the Awoken Queen he will in turn ally himself and his fallen with us. This way, we will have access to the Fallen's large fleet of Ketchs and Skiffs (the city lacks any sort of organized fleet of ships) and large amount of versatile ground troops (which again, we lack. Guardians are more like small strike forces). [b][u]The Taken/Hive:[/u][/b] This may seem strange but stay with me here. We already know that Savathun is trying to or already has become Oryx 2.0. We obviously don 't want that. So there are 2 possibilities that I have come up with. 1. We fly down to Saturn to Oryx's body where Savathun may try to siphon any remaining power to solidify herself as the Taken Queen. We will actually have to DEFEND Oryx's body from her taken/hive forces in order to prevent her from filling the power vacuum. By doing this, we will in turn take Oryx's place or at the very least place ourselves a position in which we will be able to control a small portion of taken/hive forces. By doing this we will be able to teleport forces in a hurry instead of have to fly troops to where they need to go. 2. A section of the hive rebel from Savathun's rule (much like Alak Hul) and stay leaderless or simply loyal to Oryx. Then by us defeating Savathun they ally with us due to the sword logic dictating how powerful we are or just by us aiding them against Savathun's hive. [b][u]The Vex:[/u][/b] This one is a bit more of a long shot but it is a possibility in case we don't ally with the taken/hive, The vex may see the coming darkness from the Traveler's awakening and reason that their best chance for survival is by creating a temporary alliance with the beings who they can't simulate and have yet to beat so far; us. The vex will serve the same purpose as the taken/hive which is them being able to instantly teleport to wherever we need to go. You may notice that I didn't mention the cabal and that is for a reason. Calus is heavily implied to be wanting to work with us in the face of the coming darkness, so much so that I find it hard to believe that he will be used in an expansion. Calus will most likely join this alliance we have created in D3 to supply us with what we and the other races lack: large scale, heavy military support. Having the Cabal as allies will grant us access to a marching, proper army. One that specializes in large scale battles with heavy hitting weapons and tactics. Those are my thoughts on what would happen. If you see any inconsistencies or flaws in my argument please point them out. Or if you find any evidence to support this crackpot theory, please post that as well.