Sony is working on a new PlayStation 3 model, according to documents uncovered by Japanese website Pocket News. The details, filed by Sony to the Federal Communications Commission, reveal a 4000 series of the home console. We’re currently on the 3000 series by the way.

Buried within the document are images of the proposed PS3 compared to older units. Unsurprisingly, it’s significantly smaller – supporting rumours that a refreshed hardware design is set to be announced soon.

Adding fuel to the fire, Shuhei Yoshida refused to rule out an updated PS3 model when asked at E3 last month. “Never say never,” he said.

Sony loves making hardware and price announcements at GamesCom, so all eyes are on the big show in Germany. In the meantime, the platform holder has refused to comment. Surprise, surprise.

[via fjallfoss.fcc.gov, pocketnews.cocolog-nifty.com, eurogamer.net]