Although Kojima made an appearance at E3 2021 to announce Death Stranding: Director’s Cut exclusively for PS5, in addition to hinting at another possible exclusive project underway, the truth is that the agreement between Kojima and Xbox is still underway. According to what the journalist Jeff Grubb has commented on his weekly podcast, although Kojima Productions could be linked to Sony for a new exclusive project, the truth is that this would not prevent him from working for other companies, Microsoft being one of them. Little is known of this new project that Microsoft and Kojima would have in hand, although the name of Silent Hill has not been long in coming out.
The agreement between Kojima and Microsoft is ongoing:
Jeff Grubb has echoed the rumors about the possible PS5 exclusive Silent Hill that would come from the hands of Kojima himself. As has been commenting on Twitter in recent days, the Blue Box studio would have hinted that Silent Hill is its next game, exclusively for PS5, and that it would really be Kojima himself who was behind this study and the published messages On twitter. On the other hand, another sector of fans believes that there would be several Silent Hill projects underway, in the style of Resident Evil, or that there would only be one, temporary exclusive to PS5. In any case, this rumored Silent Hill would not be linked to the Microsoft and Kojima project, which would continue to run.
Kojima could be faking all this. So I did not believe it, because it has an agreement in place with Microsoft, which is yet to be closed and that situation continues. But that agreement would not close the door to working with other companies.