Both retail and digital
Etrian Odyssey Untold: The Millennium Girl recently blazed a trail on the 3DS platform in the US, but it looks like Europe is getting a piece of the action too. While there is no solid release date in sight, Millennium Girl is coming in 2014, and it will be a dual physical and digital release.
Should you find yourself on the fence, a double-dungeon demo will launch a little bit before release. For those who were wondering, NIS America will be handling the European localization.