Well, one fan, graphic artist and God of War Art Director Rafael Grassetti, is hoping that it will be the Marvel character Ironheart and has even taken the liberty of designing the character should they ever be introduced in live-action.
Working alone, Riri designs a suit of armor similar to the Iron Man armor using material stolen from campus.
Riri decides to continue the legacy of Iron Man after Tony Stark falls into a coma.
With the guidance of an A.I. duplicate of Stark, Riri creates a new, much better suit of armor and takes up the alias of Ironheart.