Meet Namor and Ironheart in Marvel's emotional Black Panther: Wakanda Forever trailer

Marvel's panel at this year's San Diego Comic-Con was jam-packed with amazing reveals and heartbreaking trailers (we've heard the Guardians of the Galaxy: Vol. 3 trailer was a real tearjerker), but none were as powerful as the reveal for Black Panther: Wakanda Forever.

Once again at the helm to direct is Ryan Coogler, a...