Originally slated for release last year, Sonic Boom: Fire and Ice will be released on the Nintendo 3DS come 27 September this year.
Fire and Ice initially was set to launch fall last year but was then pushed to 2016 when the original date drew closer, not announcing a set date yet at the time. The game is essentially a follow up to Sonic Boom: Shattered Crystal from 2014, and is based on the Sonic Boom cartoon. 
Hopefully the game will fare better than the other Sonic Boom title, Sonic Boom: Rise of Lyric, which had lots of problems in production and was poorly received on the Wii U.
