Fan Casting The Worst DOWNFALL Remake/Sequel

In April 1945, a nation awaits its downfall... But since then, there has been a prequel trilogy, a sequel trilogy, a sequel to the prequel, a prequel to the sequel, countless tv spinoffs, a movie spinoff of the tv spinoff which is both a prequel and a sequel, Not to mention... 2 Dunes, 7 Jurassic Parks, 2 Spaceballs, the Star Wars movies, 2 Avatars plus 3 upcoming Avatars making 5 Avatars, 36 MCU films with 2 different Robert Downey Jr.'s, DCU attempt #1, DCU attempt #2, 6 different Batmen, an animated Lion King, the 7 Ice Ages, A live-action animated Lion King, A live-action animated Lion King prequel, 8 Harry Potter films, a tv series remaking the same 8 Harry Potter films, a whole streaming service of Star Trek, 7 Alien movies (2 of which were Predator movies, not to be mistaken for 6 Predator movies that are not also Alien movies), 1 Prometheus (which is kind of an Alien movie), 4 Beatles movies, 2 Minecrafts, 2 Legos and Oppenheimer. But after 20 years there has only ever been one... Upfall. Or not?