I dunno on the comic-specific questions, but I do know that are those among our number who MIGHT be grabbing a copy today, so they MIGHT have moar information to share with the class....

Oh the likenesses. Amen to that. Although I couldn't help but appreciate the nod to the stubble going on with Clint. And Nat's lips do look a bit fuller than previous comic book incarnations. I like to think those things are conscious decisions. ;)