Looking ahead to 2017, our picks for the most exciting franchise categories of the year include several that are going strong and show no signs of slowing, and a few that are beginning to ramp up to their true potential. You’ll find up-and-coming business opportunities such as computer coding for kids, trampoline parks and fusion hot dogs, as well as the tried-and-true: fitness studios, pet care,and disaster restoration. What do they all have in common?