Apple typically times release of FCC documentation with the release date, so we expect new AirPort Extremes (and Time Capsules) today (Tuesday).The FCC just trumped Cupertino's plan to sneak out an updated AirPort Extreme wireless base station with the outing of an Apple 3x3 802.11n access point, model A1408.
There are reported to be 3 new devices: 1 AirPort Extreme and 2 Time Capsules (2TB and 3TB).
Article Link: FCC Documents Confirm New AirPort Extreme