This sounds like an awesome year. I know this is the WTM forum, but sometimes, WTM isn't always a fit, for either a child, a year, or a family. Taking a year off doesn't mean you don't get to come back.
And yes, it's scary! I'm just starting with a Ker and I'm already stressed about rigorousness and four year cycles and things, and the more I read, the more I think that any program needs to be adapted so it works for the family. It shouldn't be the other way around. Do not sacrifice your family to a teaching philosophy.