Fresh off rumours of the Dualsense controller offering improved battery life, the PlayStation Blog has confirmed that Dualshock 4 controllers will work on the PlayStation 5 - to a point.
According to the post which you can find here, “the DualShock 4 wireless controller and PlayStation officially licensed third-party gamepad controllers will work with supported PS4 games.”
Dualshock 4 Will Work With PS5, But Not For Next-Gen Titles
That sounds like great news, but it's not perfect - “Please note, not all PlayStation officially licensed or third-party peripherals/accessories may work on PS5,” the post notes.
“We recommend checking with the manufacturer to confirm whether a product will work on PS5 and specific titles.”
“We believe that PS5 games should take advantage of the new capabilities and features we’re bringing to the platform, including the features of DualSense wireless controller.”
With PS5 backwards compatibility still in the air outside of a mysterious "top 100 PS4 games" that'll be playable on the system at launch, at least we know where we stand with controllers.
In terms of other accessories, such as headsets or racing wheels, most of them should work just fine with PS5. In fact, if it connects via USB or audio jack directly into the controller, you're pretty safe. Whether your headset can support the 3D audio provided by the PS5's Tempest Engine, however, we couldn't say.
As far as PSVR goes, it'll need an adapter to work with PlayStation 5 games. Don't worry, though - Sony is providing the adapter free to PS5 and PSVR owners.