Destiny 2 having the option to follow the path of Darkness or the Light would be a great feature. Just as Mass Effect and Infamous had different results based on your moral choices, so to would Destiny. Many Guardians in the lore fell to the Darkness. It would add replay value to the campaign and great depth to the story, just as Halo 2 had when it explored the inner workings of the Covenant with the Arbiter. Like if you would like this to be a feature but know that Bungie will not implement it.