James Gunn, the creator of the superhero series Peacemaker and co-head of the DCU, revealed exactly when Season 2 of the series takes place after Superman. Notably, Superman, also helmed by Gunn, is the DCU’s first cinematic entry.

So it seems the DCU show's lates season picks up only a month after the events of Superman. I honestly like the idea of the show not being too far removed from the interdimensional chaos that occurred in that film.

According to the report, given his expanded role, Flag Sr appeared to be the new Director of ARGUS in Peacemaker Season 2’s trailer, showing how these developments have influenced his stance on metahumans and hinting at new conflicts ahead.