Documents filed by Sony with the Federal Communications Commission -- the US organisation responsible for approving consumer electronics for public consumption -- have revealed that the console manufacturer has another new revision of PlayStation 3 hardware in the oven (via: Eurogamer).

It's not clear whether this is just another minor revision to help Sony further trim manufacturing costs, but Eurogamer seems quite confident that this new "CECH-4001x" model is actually a new "Super Slim" model that has been rumoured for a reveal at the upcoming GamesCom 2012 expo, which will be held in Cologne, Germany in late August.

The currently slim model is known as the 3000 series, and introduced reduced size, weight and power consumption when it superseded manufacturing of the previous model back in 2009.