Instead, I am now told that what was 5G, what they had decided to retain, will be an imprint of related books, showing a future for the DC Comics but not necessarily in the continuity of the shared universe.
And that previously reported plans for a much older Superman to become the new leader of The Authority are part of that storyline. With Jonathan Kent as the Superman that the rest of the world will know.
But what will bind all the 5G titles together, and keep them separate from the rest of the DC Timeline now, begins with Jonathan Kent using Smallville as his own Fortress Of Solitude. So that the people of the town protect him from the outside world after Smallville becomes a tourist attraction after Clark Kent revealed his identity. Something that might involve a more authoritarian Superman.
But going forward, Jonathan Kent takes the entire city of Metropolis and makes it into a bottle city, a bit like Kandor. And its in that world that this imprint is going to take place. Quite literally, a 'bottled' 5G.
As for creative teams, schedules and formats, that is still all up in the air as far as I'm concerned. but either San Diego Comic-Con@Home or the DC Fandome might be possible online venues to announce such a project. Keep watching the skies…