The Flash's Final Season: Missed Opportunities and Unfulfilled Crossovers.
The Flash showrunner Eric Wallace has revealed that a proposed Blackest Night crossover that would have connected several live-action DC series was planned for the final season of the show. The crossover would have brought together characters from Superman & Lois, Stargirl, and Titans, suggesting the multiverse would have been a major focus. Wallace also revealed other plot threads that had to be abandoned due to the shorter format of Season 9, and several Flash veterans he had hoped to bring back for the final season.
