Although they may make the jump to the US at some point, bear in mind that these three new PlayStation 3 models have only been confirmed for Japan.
Just before E3 kicked off, multiple sources located FCC filings for three new PS3 models and now, the unveiling is here: the CECH-2500A will boast a 160GB hard drive and be available in the standard charcoal black, the CECH-2500A LW is essentially the same machine only it's painted in a classic white finish, and then there's the CECH-2500B, which features the huge 320GB hard drive and is in black. All of these models will boast built-in WiFi 802.11 b/g as well as Bluetooth 2.0+EDR and if you hadn't already guessed, that 160GB machine will replace the current 120GB model and the 320GB machine replaces the 250GB that's currently on store shelves. As we said, we don't know when or even if these models will become available in US and/or European shores, but we can always assume. Very likely, this move could help Sony, as Microsoft just recently updated their standard Xbox 360 to include a 250GB hard drive for the same $299 price.
So anyway, we'll let you know about the status of these three models in the coming year; very likely, they might hit the US for the 2010 holiday season.