“AVENGERS… ASSEMBLE.” And then, after the initial scroll: “Tony Stark will return.” (Quickly corrected to) “Iron Man will return.” And finally: “The Avengers will return.”
The final battle erupts. The resurrected heroes, along with the armies of Wakanda, Asgard, the Ravagers, and the Sorcerers, arrive through Doctor Strange’s portals. Thanos seizes the Stones, but Stark, using his nanotech, stealthily takes them and snaps his fingers, turning Thanos and his army to dust. The strain of using the Stones kills Tony Stark. Avengers 4
Here is the text for Avengers: Endgame (often referred to as Avengers 4 before its title was revealed). “AVENGERS… ASSEMBLE