They published a roadmap on bitcoinprime.org (obviously now gone), they did a recorded Q&A session on Discord that might still be on youtube. They also had a Trello site with all the work items that were planned out. At some point they must have decided on downplaying the fork, and so every day 4 or 5 people would come into discord and ask when the fork was, just to get the canned reply that the emphasis is on development work, and if and when the fork "made sense" they would consider it. Except for a couple of random trolls that got "moderated" on discord, it was pretty quiet. And then it all disappeared. Maybe it was supposed to be a pump and dump, but it never forked, and then it looks like the market took the dump first.