Hideo Kojima himself reveals all about the GDC announcement, Joakim Mogren and even information on how Ground Zeroes relates to Metal Gear Solid V in this interview!

It's important in life to maintain a broad palette when it comes to culture and the arts. Hideo Kojima agrees, as he continues to use video games like Death Stranding to introduce people to music and other elements they might not otherwise discover.

Over ten years after its release, does Metal Gear Solid V: The Phantom Pain still impress? Jump Dash Roll returns to Snake's world for this Brutal Backlog.
I don’t think I’ve ever quite experienced an unfinished game that was slapped together with duct tape and construction paper to be sold as a finished product, basically making you replay the same missions and include a story that clearly was missing so much of the plot, like I did with this game.
I’m actually shocked that it doesn’t get calls out for this more.

GDC has revealed a Keynote speech by Hideo Kojima is scheduled.
He pretty much confirms that Ground Zeroes and MGSV:TPP will be released separately. They are both open world, but Phantom Pain is much bigger.
Mark my words, Ground Zero will be released later this year on PS3/360
then we will have MGS5 Phantom Pain for next gen consoles
V for Victory indeed.
Kojima is a genius, I blindly trust him. Metal Gear Solid games never fail to amaze me, not because of graphics or gameplay, because of deep massages that was conveyed throughout the series, massages about war and peace, the danger of nuclear powers...etc along with the mature and excellent dialogues. no other game series has ever been able to pull off such feat.
I always wondered of people who hated the CODEC calls, or the game cutscenes, every single word has a meaning, every single word in those calls or cutscenes was foretelling something in the future or in the past....few people can understand this level of greatness.
Thank you Kojima for creating this Masterpiece
Two different mgs games confirmed.