It seems a PlayStation 3 Super Slim model may be in the works.

Documents filed with the US Federal Communications Commission, have revealed Sony’s plan to release a new PS3 model, the 4000 series.

A CECH-4001x model is mentioned, which could relate to a slimmer PS3 – something that was rumoured to be announced at Gamescom next month.

Sony executive Shuhei Yoshida has previously teased the prospect of a new super slim PlayStation 3.

"We should never say never - hardware guys are always looking at ways to make things cheaper, smaller," he told Eurogamer in June.

The last PlayStation revision was the PS3 Slim in August 2009.