https://www.darkhorizons.com/gunn-of...son-2-details/
When talking about Peacemaker season 2, James Gunn confirms that Superman will feature a Quantum Unfolding Chamber (QUC). That probably means the rumors about the villain of Superman being Ultraman are looking pretty likely to be true.
And in Peacemaker season 2, it seems clear that either the Snyderverse Peacemaker is coming to visit the Gunn-verse Peacemaker, or vice versa (and one will probably kill the other). Are people really still in the mood for all this multiversal stuff, though? I would've thought after Flash was DOA DC would've wanted to steer clear of that stuff for a good long while.