Well, here it is. AICN has posted images (more there) of what is supposedly the design of the final or near-final costume for Joe Johnston's Captain America. So this is most likely what Chris Evans will look like as he says, "Prepare to face my jingoism buckler, because I'm the Captain of the United States!" (His catchphrase.)
I was sort of hoping they'd go the route of Ultimate World War II Captain America, instead of the expected mix of "we have to make this super-sleek and cool to sell Captain Man toys" and "whups, he's supposed to be WWII-era--could you throw on some incongruous, vaguely-older-looking parts?" they went with. But that's just me. What do you, the greater Internet, think?