great! another Hollywood megablockbuster where the bad guy is a Chinese character LOL
Yeah it would be rather stupid to include a villain of the nationality you are trying to break into... Although even if it was the case the audience would still lap it up (given their taste for excessive special effects, transformers k).
But then again having a chinese contribution to the film doesn't necessarily mean it needs chinese actors, or even chinese filming locations. I wonder how the "story will resonate strongly with chinese audiences"... let's be honest, the iron man franchise is quite pro american and pro US military. Unless tony stark finds himself allying with the PLA or a chinese military entrepenuer to fight off aliens or something I can't see how they can validly include a positive chinese element to the iron man mythos.
And tony stark getting an asian girlfriend doesn't count lol... =__="