This must be rough times, Konami cancels one mystery project from Kojima. The only rumors we had wre about an adventure game with Suda 51.
It's very rare to see Metal Gear Solid creator Hideo Kojima in low spirits, but the Japanese director has been taking the cancellation of a mystery project pretty damn badly. Apparently, he's spent a year on an unannounced title, a year that's now become "meaningless."
"I can’t take it anymore; this is unbearable, I can’t stay positive," Tweeted the developer. "The thing that I spent one year delicately preparing became meaningless."
http://www.destructoid.com/kojima-s-new-game-canceled-kojima-not-happy-about-it-201905.phtml