So I've confirmed that my e3 swag piece is on its way! As such, I'll go on ahead and let you all in on the secret!
Here it is:
Bam! It's a MGS V Phantom Pain poster. This was, as far as I know, an E3 exclusive promo poster issued by Konami. Supposedly it was handed out only to press people and VIPs at the show. Kojima himself is said to have personally handed out some of them.
From what I understand, there was a backstage area at the Konami booth that was only accessible to certain press people and VIPs. That's where they had the posters and where they were handed out.
Needless to say, I am very excited. I really can't wait to have it! I just hope it gets here safely!
I'll post better pics once it's in-hand.