>Stephen Amell planned to leave after season 7 to spend more time with his family in Los Angeles, but the producers convinced him to return for a shortened final season and give the series a proper sendoff.
>In season 8, Oliver will be working alone, going on missions across the world for the Monitor in order to prevent the Crisis, while trying to come to terms with his impending death.
>There will be another flashforward storyline. Katherine McNamara and Ben Lewis, who played Oliver’s children Mia Smoak and William Clayton, and Joseph David-Jones, who plays Diggle’s adoptive son Connor Hawke, have all been promoted to the main cast. Andrea Sixtos, who plays Rene’s daughter Zoe Ramirez, is expected to return, and casting is underway to John Diggle Jr., Diggle’s biological son who has a strained relationship with his adoptive brother.
>Malcolm Merlyn, Tommy Merlyn and Adrian Chase will all appear in season 8, but will be “different versions” of themselves.
>Oliver will revisit many hallmark moments of the series in season 8. Episode 1 will be an ode to season 1, episode 2 will be an ode to season 3, and so on, but the tone will be very unique due to the Monitor’s presence and the cosmic stakes.
>According to Amell, despite the Monitor’s prophecy, Oliver’s death is not 100% confirmed, although he always believed that, as the only Arrowverse hero without superpowers, Oliver should die eventually as the threats he faces becomes greater.