Fire Emblem: Awakening will be released as both a retail game as well as a download title in North America. The game recently received a listing on the Nintendo eShop, that confirms that it will be made available to download.
The eShop page also has 3D screenshots on it, so if you own a Nintendo 3DS, you can go look them up. (Look out for the third screenshot in particular!) You’ll have to search for the game by name, since it isn’t featured on the front page of the eShop at the moment.
Fire Emblem: Awakening will be available in North America on February 4th. Europe will see the game in April. In case you choose to go the retail route, pre-ordering the game at GameStop will get you an art book.
A high-five to Siliconera reader, Lyndis, for the tip!