That Ezio Auditore da Firenze sure knows how to disappear into the crowd. So well in fact, his skills at vanishing are spilling over to the status of the Assassin's Creed title that was planned for the 3DS.
Assassin's Creed: Lost Legacy was originally planned for the 3DS but during an interview with Joystiq, Darby McDevitt ― who's served as a writer for Assassin's Creed: Bloodlines, Assassin's Creed II: Discovery and the upcoming Assassin's Creed: Revelations for the Xbox 360 and PlayStation 3 ― revealed that the 3DS instalment has been dropped and instead, absorbed into Revelations.
You may have heard of the game 'Lost Legacy' for the 3DS. It was announced, but that kind of morphed into [Assassin's Creed: Revelations]
McDevitt suggested that the story arc that was planned for Lost Legacy has been lifted and utilised in the upcoming Revelations.
Although this means we will no longer see Lost Legacy for the 3DS, we could still see an Assassin's Creed game for Nintendo's handheld yet. If one does materialise, it will likely contain a new and different narrative.