That would be awesome. I would like to guarantee you'll have fun, but all I can really guarantee is that you won't be bothered by what others think of what you want to write. (the anchor my UT NaNo friend apparently can't cast off)
This year I thought ahead like crazy for the main NaNo, and it either wasn't enough, or it was too much. I floundered, went with whimsy, and then fell into a corner because I stopped enjoying it and no longer cared about even getting to the end. I think it might well be best to have no idea at all, for me.
It's all relative, though. Some outline like crazy and write a 264K novel in 27 days, others just pants it and get done at 75K in a week. Or less and less of either/each.
I haven't had a chance to read the latest yet, but I will add it's an interesting concept. I actually saw a book that had various options to choose from, like your story...you turned to a different page, directed by the choice you made at the crucial point. Planning on publishing down the line?
The Choose Your Own Adventure books. I remember those. I do plan on publishing this, but as a linear story derived from the choices readers have made here. The published version will be edited for clarity, possibly with more details added (since I try to keep each section around 1,000 words), and Nathan's "thoughts" between each section cut, for better ease of reading.
I've only publish one other piece, and that was through Lulu. I like it because I have much greater control over what happens to my piece, but I can't say if that's what I'll do when I do get to publishing the book.