Looking at the iPhone accessory page today after the Apple Store came back online, two things were immediately noticeable. First, Apple has a pair 'o docks available for the new 5c and 5s -- both sell for US$29, and the only difference appears to be the shape of the port that you drop your phone into.
Apple is also getting into the case business -- as you'll remember, the company made a bumper for the iPhone 4/4S, but has never made a full case for an iPhone; it's always left that up to third-party manufacturers. For the colorful iPhone 5c, there's a "hole-y" case for $29 that you can mix or match with your phone.