Warning: The following contains SPOILERS for Superman & Lois' season 2 finale.
The triumphant finale of Superman & Lois season 2 prompted rampant speculation regarding Superman & Lois season 3 and the series' future. Curiously, «Waiting for Superman» did far more to resolve the show's current storylines than to lay the groundwork for the next season's story. Despite this, there were still a number of notable developments that hinted at what is to come, including the introduction of Jack Kirby's New Gods into the Arrowverse.
Describing Superman & Lois season 2 as unpredictable would be an understatement. The 15-episode storyline contained multiple fake-outs and deep cuts into the considerable lore contained within the classic Superman comics that inspired the show. The best example of this came early in the season with the apparent arrival of Doomsday, only to reveal the mysterious figure that emerged from the mines under Smallville as the Bizarro Superman. Yet even this was a twist, with the Bizarro Superman unveiled as a hero seeking to save his world and the world of Superman & Lois from the season's true main villain, cult leader Ally Allston, who transformed herself into a parasitic being after merging with her Bizarro doppelganger.
Related: Clark's Power Problem Helps Superman & Lois' Finale Setup
With the help of his family and friends, Superman was able to avert Allston's plan to merge Bizarro World with his own Earth, which was also confirmed to not be the Earth-Prime that houses most of the other Arrowverse superhero series. This explained why Superman & Lois was the only CW superhero show that did not crossover with The Flash during the Armageddon event and the many inconsistencies between the world of Superman
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