Well, having Darth Maul in Solo brought in some nostalgia and tied up loose ends from previous Star Wars installments. It also created new plotlines and added depth to the narrative.
Darth Maul's appearance in Solo added an element of surprise and connected to the broader Star Wars universe. It was a strategic decision to expand his story and engage fans.
The inclusion of Darth Maul in Solo was to offer a fan-favorite character's comeback and provide unexpected twists. It enhanced the movie's appeal for Star Wars enthusiasts and added complexity to the story.