The Emperor of the Cabal uses Vex time-dilation to bring Aetheon, Crota, Oryx, Skolas and (insert chapter 5 boss here) onto a super command station centered in the Eye of Jupiter. Guardians have a 6v6 platformer boss-fight using the accumulated relics to whittle away the bosses. Then the Traveller falls, becomes one with the Earth (supermassive tower like the one on Venus.) We now have the goal of recovering our system, reviving the Warminds, and pushing the Darkness past the Oort Cloud. Enter Destiny 2.