The conclusion of Superman and Lois Season 4 ended the last remnants of DC's Arrowverse, which debuted on the CW in 2012. Arrowverse is DC's most important and interconnected Superhero franchise.

former members of the Arrowverse have revealed if they would want to join the new franchise. Following its ending in 2023, the DCEU movie timeline is being replaced by the new DCU franchise ...

“Heroes Join Forces” was the Arrowverse’s second official crossover ... destroyed the Earth in an effort to undo an alternative timeline that had been created by Eobard Thawne — Reverse ...