The Flash could lead to a significant resurgence for 2013's Man of Steel. After years in development hell, The Flash is finally set to hit theaters on June 16, 2023, with DC's multiverse being a foundational element of its story. In The Flash, Barry Allen (Ezra Miller) time-travels into the past to prevent the murder of his mother, but in doing so, causes a major timeline calamity with the return of General Zod (Michael Shannon), once more on a mission to invade and terraform Earth into a new Krypton.
https://screenrant.com/dc-universe-flash-man-of-steel-interest/