If it's crap ... We'll tell you
I'm pretty sure... no... completely sure... that I don't care...
Jay, I thought the same thing about Dick York as Darrin.
Robert Pattinson! Think about it they have the same first name.
Robert Downey MADE Iron Man, I frankly did not know anything about, nor did I care to know anything about Iron Man. RDJ was the main reason Iron Man wasn't written off as a second-rate Batman. He played this witty and charming playboy so well that it kept his frankly Mary-Sueish intellect grounded.
Aside from that, maybe if RDJ bowed out they could get Tyrion Lannister (not Peter Dinklage, TYRION LANNISTER) to be Iron Man. They could totally break new ground with a superhero with dwarfism...or something. Okay, I kinda just want to see Tyrion Lannister in a killer robot suit.
pretty much just War Machine takes his place on the Avenger