Nintendo announced the release of the next Fire Emblem 3DS game today on the Fire Emblem Direct the Fire Emblem Echoe. The game’s full title is Fire Emblem Echoes: Shadows of Valentia the remake of the Gaiden FE.
It will be available from April 20, 2017 in Japan and from May 19, 2017 in North America with amiibo support.

The game going to costs in Japan 4980 Yen + tax and the amiibo figures will be available for 1200 Yen + tax from the same day as the game.