In "Success Is Assured", the final episode of "The Flash", that aired aired May 12, 2020:
"...'Barry' considers a dangerous plan to save 'Iris' from the 'Mirrorverse'. 'Ralph' tries to stop 'Sue' from making a terrible mistake that could destroy her life..."
"In terms of what our next 'crossover' event will be next year", said "The Flash" executive producer Greg Berlanti, "I think truly because of 'Covid' right now and the pandemic, our aspirations aren't quite as large.
"We'd just like to start shooting again..."
Based on the characters from DC Comics, The Flash is from Bonanza Productions Inc.