Console makers often collaborate with studios to optimize games for upcoming consoles to make sure that popular titles are compatible with upcoming hardware. However, this will be difficult when a console manufacturer isn't willing to share details about their consoles, especially if it hasn't been revealed yet. In a worst-case-scenario situation, this is what will happen with the PlayStation 6 and Activision Blizzard.

According to the deposition filed by the console maker with the US Federal Trade Commission on the Microsoft's proposed acquisition of Activision Blizzard, PlayStation head Jim Ryan commented on its plan not to share confidential information about its upcoming console with a competitor.

Ryan said that if Activision becomes owned by Microsoft, it would force Sony to keep information about the PS6 away from the publisher.

Sony cites its collaboration with Mojang, the Microsoft-owned developer of the popular sandbox Minecraft, supports its concern. However, the deposition is heavily redacted and there is no real way to determine how PlayStation's work with Mojang supports Sony's concern over Microsoft's acquisition of Activision Blizzard.