Avengers: Endgame': Tony's Funeral Hinted at a Possible New Future Superhero

So who was that kid attending Tony Stark's funeral at the end of Endgame who many people couldn't identify while they were playing "spot the MCU hero?"
So who was that kid attending Tony Stark's funeral at the end of Endgame who many people couldn't identify while they were playing spot the MCU hero?

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So who was that kid attending Tony Stark's funeral at the end of

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