Good news, everyone! Bit.Trip Saga is coming to the eShop. A listing on Nintendo's online service confirms a digital release for the 3DS compilation. The six game set will be available on December 20th for $15, which is actually quite a deal considering the breadth of content these titles offer.
For a series that seems keenly aware that the end lies in the beginning, it seems very appropriate for Bit.Trip to make a return to a Nintendo platform as a digital release. If you've yet to experience these games elsewhere, I'd strongly recommend picking them up.