There are rumors that Microsoft and Kojima Productions could collaborate on a future project. Supposedly, Kojima was working on a game for Stadia, but the project was canned. Microsoft could sign a contract with Hideo to make that project happen.
According to the same human that leaked Stranger of Paradise: Final Fantasy Origin, Microsoft and Kojima Productions will sign a contract to publish the episodic horror title created by Hideo Kojima.
Abandoned n'est pas de Kojima
Kojima va signer un contrat avec Microsoft afin de publier son projet d'horreur épisodique (le jeu Stadia). Microsoft ne va pas acheter le studio
Sony aurait refusé le projet car le format épisodique ne leur plaisait pas pic.twitter.com/DRqsF77t53
— SoulsHunt (@SoulsHunts) June 26, 2021
The leaker believed that Sony was not interested in an episodic project, but he is not sure about that part. Therefore, keep it as a speculative claim.