https://www.bungie.net/en/News/Article/45983/7_This-Week-At-Bungie--06222017Console Exclusives
The weapons, armor, and playable activities that have been available only on PlayStation will transfer to the Xbox in October, 2017. Exclusive content from The Taken King will migrate to all four launch platforms, including legacy consoles including PlayStation 4, PlayStation 3, Xbox One, and Xbox 360. Exclusive content from Rise of Iron will only migrate to PlayStation 4 and Xbox One. Well follow up with a more exact date before it arrives.
I guess good news of people playing Destiny on Xbox 360. I would assume everyone else will be playing Destiny 2 by October.