User blog comment:Mr. Xemnas/Fin Fang Foom for Iron man 4 WHO'S WITH ME!!/@comment-5145876-20130224002307/@comment-4651179-20130224045903

Recasting, it would be hard, but it's possible to find anyone as Tony Stark-esque as RDJ... maybe his father himself, If you understand who I am suggesting to be the new Tony Stark...