Plus, Morgen has the word 'Ogre' in it. Project Ogre was named as Konami's project a while back.Though Moby Dick Studio’s website claims to be operating out of Sweden, it also says it was founded by someone named “Joakim Mogren.” As many on Twitter and even Kotaku and Polygon have pointed out, “Joakim” is an anagram for Kojima.
Check the trailer and watch for 2:03 and 2:59. You get some pretty clear looks at the main characters face (and he's called a soldier). His right eye is ****ed over, so its Naked Snake. Plus, its a bunch of stealth, and the giant whale eating the helicopter is probably a metal gear. The guy with the powers has a weird Psycho Mantis thing going on, and the end of the trailer has a patient floating that way PM does. It's been confirmed that it not Ground Zeroes (Snake looks waaay to young there for it to be GZ), and the thing with the letters in the logo is pretty convincing.