Iron Man's MCU legacy hero, Riri Williams, a.k.a. Ironheart, has one major difference from the MCU's original armored hero, setting her apart from many other Marvel heroes and spelling good news for her upcoming solo series. Dominique Thorne debuted as Riri Williams in 2022's Black Panther: Wakanda Forever, introduced as a genius MIT student who designed technology capable of tracking vibranium. While she was introduced as the MacGuffin of Wakanda Forever, with the Wakandans and the Talokanil each fighting over her, Williams has a much larger role to play in the MCU's Multiverse Saga, as she has been set up as Iron Man's armored replacement.
https://screenrant.com/iron-man-replacement-ironheart-riri-williams-trauma-tradition/