iFixit gets busy whenever Apple announces new hardware. Not only did the repair company tear down the new 2013 MacBook Air, it also cracked open the new Airport Extreme.
According to iFIxit, the tall, rectangular device is a series of "vertical circuit boards surrounding a big empty space." This space is big enough to hold a 3.5" hard drive, but iFIxit needs to look at the new Time Capsule to determine whether a DIYer could save some cash by purchasing an AirPort Extreme and installing their own hard drive into the device.
Good