October Novel Prep Challenge

First half of the month, I was soaring. I had ideas, and they were hitting my notebook like wildfire. I was on a roll! Then I started questioning myself. I realize that I really really really liked the world I was developing, and I couldn't limit that world to just One Book. It deserves a series. Of course then.. I start questioning whether the plot I'd been developing for my NaNo writing is too closed.. doesn't allow room for future books in a series.. and if that's the case.. what can I change? How can I open it up to be a bigger longer story?

I know I had some luck with thinking that through in my head, but now it seems like my brain has turned to mush!! I keep thinking in loops.. and not getting into the new thoughts that I know I need today. Hopefully I'll have better luck tonight!!