Destiny‘s next expansion, Rise of Iron, is set to launch Sept. 20 — and only on PlayStation 4 and Xbox One, according to an image that the game’s official website posted too early.

You can see in the screenshot below that a box on the website appears to link to the trailer for Rise of Iron, which Destiny developer Bungie was planning to air during a livestream tomorrow.

The trailer doesn’t appear to be live yet, but the information on the page is just as notable. Every chunk of Destiny content to this point — the base game, as well as all three of its existing expansions — has been released on PlayStation 3, PS4, Xbox 360 and Xbox One. With Bungie and publisher Activision having announced earlier this year that a full sequel to Destiny is coming sometime in 2017, fans might have expected that Bungie would continue developing expansions for the last-generation consoles until the sequel.

It’s unclear if the leaked release date announcement means that Rise of Iron will never be released on PS3 and Xbox 360, or if it will come to those platforms at a later date. We’ve reached out to Bungie and Activision for comment, and will update this article with any information we receive.