On their original ***, they said they were going to go start on OF to do things like their old Sprout content, but were put off by a YT account uploading old Sprout videos. If that channel didn't get taken down, they would scrap the idea and delete the *** server. The channel didn't fully get taken down, but enough videos did that they said the plan was back on. But then more YT channels came up, one even trying to start a Patreon using their content. Then that leak, whether it was real or not. They never officially said that they were giving it up, but they did close the *** server - which they had said would go hand in hand with scrapping the idea of Sprout or OF and which was the only place they announced it and would give updates for it. So yeah, safe to assume it's kaput.