So I am but a second Xbox one for my bedroom but I am not sure if I re-buy destiny that the season pass would transfer. (But also I bought the disc version previously, not sure if that makes a difference). Any help would be appreciated, thanks.
If you log in with the same Xbox Live account on both Xboxes, then you will be able to use the Destiny DLC on both. If you want to play co-op and use both Xboxes at the same time, then it won't work because your account can only be logged in to one Xbox at a time. Unless whomever you're playing with has also bought the Destiny DLC, they will need to purchase it.