I've been reading Iron Man
since before I even knew how to read, so no, those don't sound very original to me.
A movie about a colorful superhero character is mainstream now. Taking the superhero trope and placing it in a historical context is more risky than placing it in a modern context, simply because it's not the expected thing.
Hollywood doesn't do risky concepts. But when they try something that isn't a sequel, or a superhero comic book movie (ie, the most expected thing), they get smacked down. That's not going to send a message to get more risky. Just the opposite - that any inkling of risk, however small, is going to be punished.