The first pictures of the upcoming Fujifilm Instax Square SQ10 camera were published on Instagram (instax_square) - the new model will have an LCD screen on the back and a selector with six buttons. The Fuji Instax square format camera was announced at Photokina last year (see teasers). The official announcement should be in Spring of 2017. Stay tuned for additional information.
Update: the Fujifilm Instax SQ10 could be a Digital + Instax hybrid camera combo and most likely will have a built-in memory card.
Here are the two Instagram posts: