Just came across this trend forecast for 2016: http://www.bbcgoodfood.com/howto/guide/good-food-trends-forecast-201
Looks like most trends will be either very healthy or very unhealthy :)
Here's another one: http://www.wholefoodsmarket.com/blog/top-10-food-trends-know-2016?utm_source=MA&utm_medium=email&utm_term=ASI&utm_content=&utm_campaign=2015SingleImage3Columns_MA_MAAL
and another (no spiralizing): http://www.tastingtable.com/dine/national/food-trends-2016-ramen-breakfast-bourdain-bagels?utm_medium=email&utm_source=TT&utm_campaign=Weekend&utm_content=Editorial