Ill take a guess here, and you are missing a photo here
so... theres Raiden and Big Boss, or Gray Fox and Big Boss for a remake.
Leaked scans from the upcoming Famitsu show what looks like another familiar Metal Gear character: Raiden.
Raiden means "thunder and lightning" in Japanese — fitting as the teaser site has mostly been thunder and lighting. Oh, rain, there has been rain. (Who knows though if this character is actually Raiden, maybe it's Gray Fox?)
Those hoping for a plethora of details from the Famitsu reveal, tough luck. The title of the article is "Director Kojima Interview With Tons of Blanked Out Words: Talking The Latest MGS."
The interview seems to be mostly that: blanked out words.
See all those white dots? Those are blanked words. The big text on this page shows an exchange between the interview and Kojima. The interview asks, "Is it okay to print everything?" (Which gives substantial insight onto how Famitsu rolls.)
Kojima replied, "If you blank out words, it's okay."
Raiden =/= Gray Fox.
I agree that it can be Gray Fox instead of Raiden, but from the looks of it, it's Raiden. Raiden in MGS4 outfit.
Gray Fox aka NULL aka Frank Jaeger looks different. I'm really curious now!