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Sony hasn't shared anything official about PlayStation 5 yet, but a new patent filing has strongly suggested that backwards compatibility will indeed be featured in the next-generation console. It's the second patent we've heard about, too, so something is obviously bubbling away at Sony HQ.
This latest filing doesn't really need much explaining, and is simply called 'Simulation of legacy bus operation for backward compatibility.' It was filed at the same time as the previous one, although it's only now that details have been published (via GearNuke).
Once more, Mark Cerny, the lead architect for the PlayStation 4 and designer of Knack (although he's probably not shouting about that last one) is mentioned in the filing. In addition, it also hints at the ability to tweak the performance of legacy technology for new hardware, suggesting PS4 games could run at an improved resolution on the new console.
A similar method is employed by Microsoft for the Xbox One when running backwards compatible titles.
Naturally, it's best to treat this all as a rumour for the time being, although it's only a matter of time before Sony pipes up on its plans for a PS4 successor.
