We plan on using curriculum when we hit the road. We'll be using Math-U-See, Character Quality Language Arts (CQLA teaches reading, composition, spelling, grammar, penmenship, and character development through Biblical study and historical figures), American History (we're just beginning All American History), plus we'll fill in any gaps with Switched-On-Schoolhouse (which includes English, Social Studies, Science, Math, Bible). We're currently looking for a Science curriculum - and are looking at Apologia.
We homeschool year-round, so if we don't get it all done when its supposed to be, it will still be worked through eventually.
I have no idea if we'll stick to the plan or not. But its a guideline. I imagine we'll get a lot of history and composition and maybe science in the first year after we the road that we have not done in the past - focused on locations we visit.
I don't know about you, but we prefer the curriculum to be Bible based, if possible, and one that leads to independent study. We also prefer to have it teach to children of different learning styles, so we can ensure they are all using the same one but still learning without struggling. So far, it seems to be working. The more we do it, the better we do it.
. We have used it for years. 